The Complete Buyer's Guide to Magnum Gen 2 Tattoo Cartridges

June 30, 2026 - 1 month ago

Choosing the right tattoo cartridge has a direct impact on line quality, shading consistency, ink flow and overall efficiency throughout a tattoo session. While machine setup and technique remain essential, selecting the correct cartridge configuration ensures your equipment performs as intended for the style of work you're producing.

The Magnum Gen 2 Tattoo Cartridge range has been developed for professional tattoo artists who require consistent needle performance across a wide variety of tattooing techniques. The range includes multiple needle configurations, diameters, tapers and groupings to accommodate everything from fine line tattoos to large-scale colour packing and black and grey realism.

This guide explains how to choose the right Magnum Gen 2 cartridge based on your tattooing style, preferred needle configuration and technical requirements. It also outlines the key specifications available across the range, helping you make an informed decision before purchasing.

Key Takeaways

• Round Liners are best for linework and lettering.
• Round Shaders excel at small, smooth shading.
• Curved Magnums are the preferred choice for realism and black & grey.
• Straight Magnums provide maximum colour saturation and packing efficiency.
• Whip Shading Magnums are specifically engineered for textured stippling, dotwork, and specialised blackwork.
• Ultra-Fine (0.20mm) needles deliver the extreme precision needed for intricate fine line work and Permanent Makeup (PMU).
• Bugpin (0.25mm) needles produce softer gradients.
• Standard (0.30mm) needles are the most versatile.
• 0.35mm needles deliver faster ink saturation.
• Magnum Gen 2 cartridges feature an upgraded membrane system designed for stability and consistent ink flow.

At a Glance

Who This Guide Is For

This guide is designed for:

• First-time tattoo artists choosing their first cartridge system
• Apprentices learning different needle configurations
• Experienced artists looking to upgrade to Magnum Gen 2 cartridges
• Studio owners buying cartridges in bulk
• Artists switching from another cartridge brand
• Artists specialising in realism, colour, black & grey, lettering or traditional tattoos

If you're unsure which Magnum Gen 2 cartridge is right for your machine or tattoo style, this guide will help you make an informed decision.

Why Trust This Guide?

Choosing tattoo cartridges is about more than personal preference; it's about understanding how needle configurations, diameters, tapers and cartridge design affect tattoo quality, efficiency and client comfort. This guide has been created using the latest Magnum Gen 2 product specifications, manufacturer documentation and established tattoo industry best practices. Every recommendation has been reviewed against the current Magnum Tattoo Supplies cartridge range to ensure technical accuracy wherever possible.

Our aim is to provide practical, evidence-based advice rather than marketing claims, helping artists choose the most appropriate cartridge for their preferred tattoo style and workflow. Where appropriate, this guide links to official Magnum Tattoo Supplies product pages and educational resources so readers can verify specifications, compare available configurations and explore products in more detail.

As product specifications and cartridge availability may change over time, we recommend checking the latest product information before purchasing.

Reading Time

Estimated reading time: 12–18 minutes

What Makes Magnum Gen 2 Cartridges Different?

Professional tattoo cartridges are expected to deliver more than simply holding needles. Consistency, stability, and reliable ink delivery all contribute to predictable tattooing performance over long sessions. When we engineered our Gen 2 cartridge range, we focused on design features specifically intended to improve consistency and usability for professional artists.

Key features include:

• Precision-manufactured stainless steel needle groupings
• Medical-grade safety membrane to help prevent fluid from travelling back into the machine
• Needle stabilisation designed to minimise unwanted lateral movement during tattooing
• Compatible with universal cartridge grip systems and most rotary cartridge machines
  Supplied in boxes of 10, EO gas-sterilised cartridges

Rather than focusing on marketing terminology, these design elements contribute to repeatable performance across multiple tattoo sessions while supporting good equipment hygiene and machine longevity.

Why Choose Magnum Gen 2 Over Standard Tattoo Cartridges?

Professional tattoo artists demand equipment that delivers consistency, precision and reliability throughout every tattoo session. While many tattoo cartridges may appear similar at first glance, the quality of materials, internal engineering and manufacturing tolerances can significantly impact performance, comfort and final tattoo quality.

Magnum Gen 2 cartridges have been developed specifically for artists who require dependable needle performance across lining, shading, colour packing and realism work. Features such as needle stabilisation technology, a medical-grade safety membrane and precision-manufactured needle groupings help create a more predictable tattooing experience while supporting studio hygiene standards.

For artists working long sessions or producing highly detailed work, even small improvements in cartridge consistency can make a noticeable difference to line quality, shading smoothness and overall workflow efficiency.

Magnum Gen 2 vs Standard Tattoo Cartridges

Ready to upgrade your cartridge setup? Browse the complete Magnum Gen 2 range to compare configurations, diameters and taper options.

The Bottom Line

For artists who rely on predictable performance, Magnum Gen 2 cartridges provide a comprehensive range of professional configurations supported by modern cartridge technology, consistent manufacturing standards and reliable ink flow characteristics. Whether you're creating ultra-fine linework, smooth black and grey realism or heavily saturated traditional tattoos, choosing the right cartridge system helps improve confidence, consistency and efficiency throughout every stage of the tattoo process.

Product Specification Table

Common Terms Explained

If you're new to tattoo cartridges, you'll often encounter technical terminology. Here's a quick glossary of the most common terms used throughout this guide.

Bugpin: A finer needle diameter, typically 0.20mm or 0.25mm, is designed for greater precision, smoother shading and delicate linework.

Needle Diameter: The thickness of each individual tattoo needle. Smaller diameters provide greater control, while larger diameters generally deliver more ink for faster saturation.

Needle Grouping: The number of needles soldered together within a cartridge. Smaller groupings are suited to detail work, while larger groupings cover more skin with each pass.

Taper: The length of the sharpened point on each needle before it reaches its full diameter. Longer tapers generally provide greater precision and smoother ink delivery.

Round Liner (RL): A tightly grouped circular needle configuration primarily used for outlines, fine lines, lettering and detailed work.

Round Shader (RS): A looser circular needle grouping designed for small areas of shading, colour blending and soft transitions.

Straight Magnum (M1): A two-row staggered needle configuration with a straight edge, commonly used for colour packing, large fills and traditional tattooing.

Curved Magnum (RM): A Magnum configuration with a curved needle profile that produces softer edges and smoother shading, making it popular for realism and black and grey work.

Needle Stabilisation: An internal cartridge design feature intended to minimise unwanted needle movement during tattooing, helping improve consistency and control.

Safety Membrane: A flexible internal membrane designed to help prevent ink and fluids from travelling back into the tattoo machine, supporting hygiene and protecting internal components.

EO Gas Sterilised: A sterilisation method using ethylene oxide gas to ensure cartridges are supplied sterile and ready for single professional use.

Universal Cartridge Compatibility: A standard cartridge connection that allows compatible cartridges to work with most rotary and pen-style tattoo machines designed for universal cartridge systems.

Understanding Needle Diameter

One of the most overlooked buying decisions is selecting the appropriate needle diameter. While configuration determines how needles are arranged, diameter influences ink flow, line characteristics and the overall feel of the cartridge during tattooing. Magnum Gen 2 cartridges are available in several professional needle diameters, depending on the configuration selected.

0.20 mm (Extra Bugpin)

The finest diameter available within selected configurations, 0.20 mm needles are typically chosen by artists specialising in:

• Micro realism
• Fine ornamental tattoos
• Fine line tattoos
• Permanent Makeup (PMU)
• Intricate texture work

Because each needle deposits less pigment per pass, slower machine control and multiple passes may be required compared with larger diameters.

0.25 mm (Bugpin)

0.25 mm remains one of the most popular diameters for artists producing smooth black and grey work.

Benefits include:

• Controlled ink flow
• Softer shading transitions
• Reduced visual trauma between passes
• Excellent for portrait realism

This diameter is frequently paired with Curved Magnum configurations to produce subtle gradients and soft blends.

0.30 mm (Standard)

Often considered the most versatile option, 0.30 mm cartridges balance precision with efficient pigment delivery.

Suitable applications include:

• Every day lining
• Medium shading
• Colour blending
• General studio work

Artists who perform a wide variety of tattoo styles often choose 0.30 mm as their default working diameter.

0.35 mm (Large Standard)

The 0.35 mm diameter delivers greater ink flow, making it well-suited to:

• Traditional tattooing
• Bold outlines
• Colour saturation
• Larger needle groupings

Its larger internal channel allows pigment to flow more freely, helping artists complete larger sections more efficiently while maintaining strong saturation.

Understanding Needle Taper

Needle taper refers to the length of the sharpened point on each needle before it reaches its full diameter. Although often overlooked, taper significantly influences how pigment enters the skin and how precise the cartridge feels during use. Depending on the cartridge configuration, our Gen 2 cartridges are available in Short Taper, Medium Taper, Long Taper, and Extra Long Taper options.

Short Taper

Short taper needles have a blunter point that reaches full thickness quickly, making them ideal for:

• Solid colour packing
• Heavy blackwork
• Bold traditional lining

Because they create a slightly larger puncture, they deposit a higher volume of ink per pass, allowing you to saturate skin quickly and efficiently.

Medium Taper

Medium taper needles offer a balanced middle ground between a blunt packing point and a fine lining point, excelling at:

• Traditional shading and blending
• Bold lettering
• Colour graduation

Artists frequently choose Medium Taper cartridges when they need a reliable, all-purpose configuration that can transition smoothly from packing to shading.

Long Taper

Long taper needles provide a balance between precision and pigment delivery, making them suitable for:

• Every day lining
• Smooth colour transitions
• Medium shading
• General-purpose tattooing

Artists looking for versatility often select Long Taper cartridges for mixed workloads.

Extra Long Taper

Selected Magnum Gen 2 configurations are available with Extra Long Taper options in needle diameters ranging from 0.20 mm to 0.35 mm, depending on the configuration available on the product page.

Extra-long taper cartridges are commonly preferred for:

• Fine line tattoos
• Lettering
• Black and grey realism
• Micro-detail work
• Soft whip shading

Because the needle point is longer, ink enters the skin more gradually, allowing experienced artists to achieve highly controlled linework and smoother tonal transitions.

Choosing the Right Configuration

Selecting the correct needle configuration is generally more important than choosing a specific diameter. Each configuration has been developed for a particular style of tattooing, and understanding these differences allows artists to achieve more predictable results while improving workflow efficiency.

In the following sections, we'll compare:

• Round Liners
• Round Shaders
• Curved Magnums
• Straight Magnums
• Bugpin configurations
• Choosing the correct grouping size for different tattoo styles

Round Liner (RL)

Round Liners are designed for creating clean, consistent lines. The needles are grouped in a tight circular formation, concentrating pigment into a narrow point for controlled ink implantation. Within the Magnum Gen 2 range, Round Liners are available in multiple needle diameters, taper options and grouping sizes depending on the specific cartridge selected.

Best for:

• Fine line tattoos
• Script and lettering
• Geometric work
• Mandalas
• Dotwork
• Traditional outlines
• Ornamental tattooing

Typical Round Liner Groupings

Depending on the configuration selected, artists can choose from small precision groupings through to larger liners for bold outlines.

Which Diameter Should You Choose?

The right needle diameter and choice are important for quality work. Read below to understand more:

0.20 mm

Ideal for:

• Micro realism
• Fine ornamental work
• Tiny lettering
• Cosmetic-style precision

Produces extremely delicate lines but requires a slower, controlled hand speed.

0.25 mm (#08 Bugpin)

Excellent for:

• Fine line tattoos
• Delicate script
• Thin geometric designs

Provides slightly greater pigment flow than 0.20 mm while maintaining excellent precision.

0.30 mm (#10 Standard)

The most versatile option for:

• Everyday outlines
• Mixed tattoo styles
• General studio work

Often selected by artists looking for one cartridge suitable for multiple applications.

0.35 mm (#12)

Recommended for:

• Bold outlines
• Neo Traditional
• American Traditional
• Larger decorative tattoos

The larger diameter increases pigment delivery, helping artists create saturated, high-contrast lines efficiently.

Long Taper vs Extra Long Taper for Round Liners

Many Magnum Gen 2 Round Liners are available with different taper lengths.

Long Taper

Suitable for:

• Everyday linework
• Faster pigment implantation
• Mixed tattoo styles

Balances precision with ink flow. 

Extra Long Taper

Available in selected configurations from 0.20 mm through 0.35 mm, depending on the cartridge specification.

Ideal for:

• Fine lettering
• Micro realism
• Delicate whip shading
• Highly controlled linework

The extended point provides greater control during slower, detailed work.

Round Shader (RS)

Unlike Round Liners, Round Shaders use a looser circular needle arrangement. Rather than concentrating pigment into a single point, they distribute ink across a slightly wider area, making them suitable for softer shading and controlled colour application.

Best for:

• Small black fills
• General Shading
• Colour blending
• Small traditional pieces
• Touch-ups
• Soft transitions

Typical Round Shader Groupings

When Should You Choose a Round Shader?

Choose Round Shader cartridges if you're tattooing:

✅ Small-scale shading and colour packing

✅ Lettering shadows

✅ Tiny colour fills

✅ Intricate traditional or neo-traditional details

Round Shaders offer more control than Magnum configurations when working in confined spaces, allowing you to blend and fill tightly packed areas without overworking the surrounding skin.

Curved Magnum (RM)

Curved Magnums (also known as Round Magnums or Soft Edge Magnums) feature a slightly arched needle arrangement. Instead of all needles contacting the skin simultaneously, the curved profile allows the outer needles to enter more gradually. This configuration is widely used for achieving smooth gradients and controlled shading. 

Best for:

• Black and grey realism
• Portrait tattoos
• Smooth shading
• Colour blending
• Realism
• Soft transitions

Why Artists Choose Curved Magnums

Compared with Straight Magnums, Curved Magnums help create:

• Softer edge transitions
• More gradual shading
• Controlled ink distribution
• Improved blending

These characteristics make them particularly popular among realism artists.

Recommended Diameters

0.25 mm Bugpin

Perfect for:

• Portrait realism
• Smooth gradients
• Black and grey

Produces slower pigment delivery for greater tonal control. 

0.30 mm

A versatile option for:

• Colour realism
• Mixed shading
• Everyday realism work

Offers a balance between smooth blending and efficient coverage. 

Straight Magnum (M1)

Straight Magnums are one of the most commonly used needle configurations for covering larger areas of skin. The needles are arranged in two staggered rows with a straight edge, allowing pigment to be deposited evenly over a broad surface. This makes Straight Magnums particularly effective for colour packing and larger areas requiring consistent saturation. 

Best for:

• Colour packing
• Traditional tattoos
• Japanese work
• Neo Traditional
• Large black fills
• Background work

Common Straight Magnum Sizes

Depending on the cartridge range, typical groupings include:

• 7M1
• 9M1
• 11M1
• 13M1
• 15M1

Larger configurations may also be available within selected ranges.

Recommended Needle Diameters

0.30 mm

Suitable for:

• General colour packing
• Everyday tattooing
• Balanced ink flow

0.35 mm

Best suited to:

• Bold colour
• Heavy saturation
• Traditional tattooing
• Large-scale work

The increased pigment flow helps reduce the number of passes required when filling larger areas. 

Hollow Round Liner (HRL)

Hollow Round Liners are grouped in a circular arrangement similar to standard liners, but they feature an empty centre core where the middle needles are intentionally omitted. This hollow space acts as a built-in reservoir, pulling a larger volume of ink up into the cartridge tip housing. It allows for exceptionally long, continuous line pulls without running dry or requiring constant dipping into the ink cap mid-stroke.

Best for:

• Long-drawn-out linework
• Heavy-gauge script and lettering
• Bold tribal details
• Geometric frameworks
• Single-pass structural lines
• High-volume ink delivery

Typical Hollow Round Liner Groupings

Depending on the configuration selected, you can choose from medium line definitions up to heavy-duty structural groupings to suit your tattooing style.

Which Diameter Should You Choose?

0.35 mm (#12)

Recommended for:

• Heavy-gauge outlines
• Neo-Traditional framework
• Fast, saturated blackwork borders

The maximum diameter combined with the hollow core delivers a heavy stream of pigment, filling broad line weights efficiently in a single pass.

Featured Product: Magnum Gen 2 Tattoo Cartridges - Hollow Round Liners (10PCS)

Traditional Round Liner (TRL)

Unlike modern ultra-tight standard liners, Traditional Round Liners are specifically engineered with a Short Taper. By utilising shorter points that reach full thickness quickly, this configuration allows the needles to sit in a slightly looser, more open circular arrangement. This design replicates classic, time-tested lining methods, delivering maximum ink flow and laying down a robust, highly visible line that holds its weight permanently over time.

Best for:

• Bold American Traditional outlines
• Neo-Traditional frameworks
• High-visibility structural lines
• Heavy illustration styles
• Single-pass solid lines

Typical Traditional Round Liner Groupings

Our short-taper Traditional Round Liners are built for solid, classic linework. Depending on your project, you can choose from these specific heavy-gauge configurations:

When Should You Choose a Traditional Round Liner?

Choose Traditional Round Liner cartridges if you're tattooing:

• Classic sailor-style flashes
• Heavy Neo-Traditional animal or floral outlines
• High-contrast illustrated borders
• Bold, definitive structural frameworks

Traditional Round Liners prevent the "pinched" look of modern liners, giving your linework an authentic, timeless weight.

Whip Shading Magnum (WSM)

Our Whip Shading Magnums are a highly specialised configuration engineered for effortless texture, featuring a unique geometric layout essentially consisting of multiple (3 & 6) rows of 3 Round Liners. Instead of creating a solid, blended barrier of colour like a traditional flat or curved magnum, this distinct design utilises intentionally spaced pin drops. Available mainly in Long Taper with selected Extra Long Taper options, this setup is built to deposit clean, distinctly separated micro-dots when swinging or "whipping" your hand, completely eliminating the need to manually stipple with a standard liner.

Best for:

• Whip shading and stippling
• Dotwork realism
• Peppered tonal gradients
• Dark decorative elements
• Illustrative sketch textures
• Soft black and grey graining

Typical Whip Shading Magnum Sizes

Unlike standard flat magnums that count single pins, our Whip Shading Magnums are designated by their unique multi-row layout. We offer two primary configurations optimised for different levels of detail and coverage: 

• 3x3 Configuration (3 Rows of 3RL): Consists of three rows of 3 Round Liners. This setup provides tighter control and extreme precision, making it perfect for smaller, intricate stippling spaces, micro-realism textures, and detailed illustrative work.
• 3x6 Configuration (6 Rows of 3RL): Consists of six rows of 3 Round Liners. This expands your coverage across larger areas while maintaining the same beautifully peppered, textured gradient effect without overworking the skin. 

Recommended Needle Diameters

0.30 mm

Suitable for:

• Fine pepper shading
• Detailed stipple textures
• Micro-dot gradients
• Soft, grainy realism transitions

Delivers highly defined, distinct micro-dots with minimal skin impact, allowing for soft layering.

0.35 mm

Best suited to:

• High-contrast whip shading
• Fast, broad stipple gradients
• Heavy decorative dotwork textures
• Illustrative black and grey

The larger pin diameter drops bolder, more pronounced dots, creating a highly visible, textured contrast in fewer passes.

Choosing Between Straight and Curved Magnums

Quick Configuration Guide

Choosing the Right Needle Grouping

Needle grouping refers to the number of individual needles soldered together within a cartridge. While diameter affects ink flow and taper influences precision, grouping determines how much skin is covered with each pass. Selecting the correct grouping can improve efficiency, reduce unnecessary passes and produce more consistent results across different tattoo styles.

Small Groupings (1–5 Needles)

Small groupings provide the highest level of precision and are commonly used for detailed work.

Best suited for:

• Fine line tattoos
• Permanent Makeup (PMU)
• Script
• Micro realism
• Ornamental tattoos
• Geometric designs
• Small touch-ups

Because fewer needles contact the skin, these cartridges offer greater control but cover less surface area per pass. 

Medium Groupings (7–11 Needles)

Medium groupings offer an excellent balance between precision and efficiency. Many professional artists use these as their everyday cartridge sizes because they can comfortably handle outlining, shading and colour work.

Best suited for:

• Everyday tattooing
• Black and grey
• Medium shading
• Colour blending
• Floral work
• Neo Traditional

Large Groupings (13–27 Needles)

Larger groupings are designed for maximum coverage. Rather than producing finer detail, they allow artists to saturate larger areas more efficiently.

Best suited for:

• Colour packing
• Japanese sleeves
• Traditional tattoos
• Background shading
• Large black fills

Larger groupings reduce the number of passes required to cover extensive areas, improving workflow during long tattoo sessions.

How Needle Diameter and Grouping Work Together

Many artists choose cartridges based on grouping alone, but combining the correct grouping with the appropriate needle diameter produces more predictable results.

Cartridge Compatibility

One of the advantages of Magnum Gen 2 cartridges is their compatibility with most professional rotary tattoo machines that use the universal cartridge connection. Before purchasing, artists should always confirm compatibility with their specific machine and grip system. Compatible machine types typically include:

• Rotary pen machines
• Wireless tattoo machines
• Cartridge grip systems
• Universal cartridge receivers

Examples from the Magnum Tattoo Supplies range may include compatible rotary machines such as the Dragonhawk Fold 2 Pro, Bishop Power Wand and AVA EP7+, where applicable. 

Safety Membrane Technology

Modern tattoo cartridges incorporate a membrane that acts as a barrier between the needle mechanism and the tattoo machine. Every cartridge in our Gen 2 range features a medical-grade safety membrane designed to prevent fluids, ink, and contaminants from travelling back into your machine during use. This provides a crucial layer of hygienic protection, protecting your equipment and maintaining a sterile environment for every client.

Benefits include

• Supports machine hygiene
• Helps reduce the risk of backflow contamination
• Protects internal machine components
• Contributes to more consistent cartridge performance

The membrane should be viewed as one component of a wider hygiene protocol and does not replace appropriate cleaning, barrier protection or sterilisation procedures.

Needle Stabilisation Technology

One of the most important performance features highlighted across professional tattoo cartridges is needle stability. Rather than allowing the needle to move excessively inside the cartridge housing, stabilisation systems are designed to maintain a more consistent needle path throughout the tattoo.

As stated on Magnum product pages, Gen 2 cartridges incorporate needle stabilisation technology intended to minimise lateral needle movement during operation.

Why is this important?

Improved needle stability can contribute to:

• More consistent line quality
• Predictable shading
• Reduced needle wobble
• Improved precision during slower movements
• Greater confidence when producing fine detail

These benefits should always be described in accordance with the manufacturer's published product information rather than as absolute performance guarantees.

Ink Flow and Cartridge Consistency

Ink flow is influenced by several factors, including:

• Needle diameter
• Needle grouping
• Taper length
• Cartridge design
• Artist technique
• Machine voltage

The Magnum Gen 2 cartridge housing is engineered to promote smooth and consistent ink delivery throughout the tattooing process, helping artists maintain even pigment saturation across different tattoo styles. 

For example:

Smaller diameters

• Slower ink delivery
• Greater precision
• Ideal for realism

Larger diameters

• Faster pigment flow
• Efficient colour packing
• Better suited to bold work

Choosing the correct combination helps optimise both efficiency and control.

EO Gas Sterilisation

Professional tattoo cartridges should always arrive individually sterile and ready for single use. Magnum Gen 2 cartridges are supplied EO gas sterilised and individually blister packed before being boxed in packs of 10 cartridges. 

Artists should always:

• Check the packaging before opening.
• Inspect the expiry date.
• Use each cartridge only once.
• Dispose of used cartridges in an approved sharps container.

Are Magnum Gen 2 Cartridges Suitable for Beginners?

Although designed for professional use, the cartridge system is straightforward enough for developing artists to learn with, provided they are working within an appropriate training environment. Because the range includes multiple diameters, tapers and configurations, beginners can gradually experiment with different setups as their skills develop. For most newer artists, a practical starting selection might include:

• 3RL – 0.30mm
• 5RL – 0.30mm
• 7RS – 0.30mm
• 9RM – 0.30mm
• 11M1 – 0.35mm

These combinations cover a broad range of tattoo styles without requiring an extensive cartridge inventory.

Magnum Gen 2 Cartridge Selection Decision Tree

Studio Scenarios

Scenario 1 - Fine Line Floral Tattoo

A client requests a delicate floral design featuring thin stems and intricate petals.

Recommended setup

• Round Liner
• 0.20mm diameter
• Extra Long Taper

This combination helps achieve crisp, controlled lines with minimal spreading.

Scenario 2 - Black & Grey Portrait

A client wants a realistic portrait with soft shading and subtle tonal transitions.

Recommended setup

• Curved Magnum (RM)
• 0.25mm Bugpin
• Long Taper

The finer diameter supports smooth gradients and delicate blending.

Scenario 3 - Traditional Eagle Tattoo

You're creating a bold traditional eagle with heavy outlines and saturated colours.

Recommended setup

• Straight Magnum (M1)
• 0.35mm
• Larger groupings

This setup is well-suited to packing colour efficiently while maintaining even saturation.

Scenario 4 - Small Script Tattoo

A customer wants a small script tattoo on the wrist.

Recommended setup

• Round Liner
• 0.25mm
• Extra Long Taper

The finer diameter offers excellent control for clean lettering.

Scenario 5 - Japanese Sleeve Background

Large background sections require efficient colour coverage over extended sessions.

Recommended setup

• Straight Magnum
• 0.35mm
• Large groupings

Designed to maximise coverage while reducing the number of passes required.

Artist & Expert Recommendations

For Fine Line Specialists

Choose the smallest needle diameter that still delivers reliable ink flow. A 0.20mm Round Liner with an Extra Long Taper is a popular choice for highly detailed work where precision is essential.

For Realism Artists

Many realism artists favour Curved Magnums because the curved needle arrangement naturally follows the contours of the skin, helping create softer blends and smoother gradients.

For Colour Work

Straight Magnums remain a studio favourite for dense colour packing. Their flat needle arrangement makes it easier to achieve consistent saturation across larger areas.

For Apprentices

Rather than purchasing every available configuration, start with a versatile selection:

• Round Liner
• Round Shader
• Straight Magnum
• Curved Magnum

This provides enough flexibility to practise a wide range of techniques without unnecessary expense.

Frequently Asked Questions

1. Which Magnum Gen 2 cartridge is best for fine-line tattoos?

For fine lines, script, and detailed work, a Round Liner (RL) with a 0.20mm or 0.25mm diameter and an Extra Long Taper offers excellent precision. The finer diameter creates crisp lines, while the longer taper supports smooth ink delivery and controlled penetration.

2. What's the difference between Round Liners and Round Shaders?

Round Liners are designed for creating clean outlines, lettering, and intricate details. Round Shaders use a different needle arrangement, making them better suited for small areas of shading, soft colour transitions, and subtle texture.

3. Should I choose a Straight Magnum or a Curved Magnum?

It depends on your tattooing style. 

Straight Magnum (M1): Best for solid colour packing, geometric work, and traditional tattoos.

Curved Magnum (RM): Better suited to realism, portraits, black and grey, and smoother blends due to its curved needle profile. 

4. What needle diameter is best for black and grey realism?

Many artists prefer 0.25mm Bugpin Curved Magnums for black and grey work because the finer needles help produce smoother gradients and softer transitions between tones.

5. What does Bugpin mean?

Bugpin refers to finer needle diameters, typically 0.20mm or 0.25mm, which are commonly chosen for detailed work, realism, and smooth shading where greater control is required.

6. What's the difference between Long Taper and Extra Long Taper?

A longer taper creates a finer point, allowing for more controlled ink deposition.

Long Taper: A versatile option for lining and shading.

Extra Long Taper: Preferred for ultra-fine linework and intricate detail.

7. Are Magnum Gen 2 cartridges compatible with all machines?

Magnum Gen 2 cartridges are designed with universal cartridge compatibility, making them suitable for most rotary tattoo machines that accept standard cartridge systems. Always check your machine manufacturer's specifications before purchasing.

8. Are Magnum Gen 2 cartridges sterile?

Yes. Each cartridge is EO gas sterilised and individually blister packed to help maintain hygiene standards in professional studios. 

9. What does the safety membrane do?

The integrated safety membrane helps prevent ink and bodily fluids from travelling back into your machine, supporting hygiene and helping protect internal machine components. 

10. What is needle stabilisation?

Needle stabilisation refers to the internal cartridge design that helps reduce lateral needle movement during tattooing. Improved stability can contribute to greater consistency and precision, particularly during detailed work. 

11. Which cartridge is best for colour packing?

For dense, solid colour saturation, a Straight Magnum (M1) with a 0.35mm diameter is generally the preferred choice. 

12. Which cartridge should I use for portraits?

Portrait artists commonly choose Curved Magnums (RM) paired with 0.25mm Bugpin needles and a Long Taper to create smooth tonal transitions and realistic shading. 

13. Can I use one cartridge for both lining and shading?

While possible in some situations, it's generally recommended to use dedicated cartridge configurations. Round Liners produce cleaner outlines, while Round Shaders and Magnums provide better coverage for shading and colour work.

14. What needle grouping should beginners start with?

Many artists beginning their tattooing journey start with smaller groupings, as they are easier to control and allow greater precision while developing technique. 

15. Are Magnum Gen 2 cartridges suitable for professionals?

Yes. Magnum Gen 2 cartridges are designed for professional tattoo artists and apprentices seeking reliable, consistent performance across a wide range of tattoo styles.

16. How many cartridges come in a box?

Magnum Gen 2 cartridges are supplied in boxes of 10 individually sterile cartridges. 

17. Which cartridge works best for traditional tattoos?

Traditional tattoos typically benefit from Straight Magnums (M1) with 0.35mm needles and larger groupings to achieve bold colour fills and strong saturation.

18. How do I choose the right needle diameter?

Your choice depends on the tattoo style.

• 0.20mm: Ultra-fine detail
• 0.25mm: Fine lines and realism
• 0.30mm: General-purpose tattooing
• 0.35mm: Colour packing and bold traditional work

19. What cartridge is best for black and grey realism?

A Curved Magnum (RM) with a 0.25mm Bugpin diameter is generally considered the best choice for black and grey realism because it produces smooth gradients and soft shading transitions.

Still Unsure Which Cartridge Fits Your Next Project?

Don't compromise your art with guessed configurations. Explore our complete technical product catalogue or reach out directly to the Magnum Tattoo Supplies Expert Support Team for tailored advice on machine setups and product compatibility.

Browse the Complete Magnum Gen 2 Cartridge Range

Contact Our Studio Support Team

Common Buying Mistakes to Avoid

Selecting tattoo cartridges isn't simply about choosing the smallest or largest needle. The wrong combination of diameter, taper and configuration can affect efficiency, line quality and overall workflow. Here are some of the most common mistakes artists make.

Choosing the Wrong Diameter

Many newer artists assume thinner needles are always better. In reality:

• 0.20 mm excels at ultra-fine detail but delivers less pigment.
• 0.35 mm deposits ink more quickly, making it better suited to bold lining and colour saturation.

Matching the diameter to the tattoo style is more important than simply choosing the finest available option. 

Using Large Magnums for Small Areas

Large Magnum configurations are designed to cover extensive areas efficiently. Using a 15M1 on a small flower or script tattoo reduces precision and can make it difficult to work around tight curves. For smaller tattoos, a Round Shader or smaller Curved Magnum often provides greater control. 

Ignoring Needle Taper

Artists often focus solely on grouping size while completely overlooking taper length. However, selecting the right taper length drastically changes how a needle behaves in the skin:

• Short Taper: Delivers a blunt point that reaches full thickness quickly, maximising ink flow for rapid colour packing, heavy blackwork, and bold traditional lines.
• Medium Taper: Offers a highly versatile middle ground that excels at traditional shading, colour graduation, and clean bold lettering. We offer an extensive selection of Medium Taper configurations because they serve as an exceptional, reliable standard for diverse, day-to-day work.
• Long Taper: Provides a beautifully balanced performance, giving you the optimal mix of precision and ink flow for everyday lining and smooth colour transitions.
• Extra Long Taper: Delivers the highest level of precision, letting ink enter the skin more gradually for fine line, lettering, and ultra-detailed realism applications.

Choosing the correct taper can significantly improve how the cartridge feels during specialised work, giving you total control over pigment delivery. 

Buying Only One Configuration

Professional artists rarely rely on a single cartridge type. Instead, most studios maintain a selection that covers lining, shading and colour packing. A practical starter setup may include:

• 3RL
• 5RL
• 7RS
• 9RM
• 11M1

This combination supports a wide variety of tattoo styles without requiring an excessive inventory. 

Recommended Cartridge Setups by Tattoo Style

Magnum Gen 2 Cartridges Comparison Table

Choosing the right cartridge configuration can make a noticeable difference to tattoo quality, efficiency and comfort. The table below provides a quick overview of the most common Magnum Gen 2 Cartridge options and their ideal applications.

Which Tattoo Cartridge Should I Use?

Choosing the right tattoo cartridge depends entirely on the style of tattoo you’re working on. While technique and machine setup play a major role, the cartridge configuration you select will directly affect line precision, shading smoothness and colour saturation. If you’re unsure where to start, the simplest way to choose is by matching your cartridge type to your tattooing goal rather than personal preference.

Quick Answer: Best Tattoo Cartridge by Use Case

• Fine line and script work → Round Liner (RL), 0.20–0.25mm
• Soft shading and small blends → Round Shader (RS) or Curved Magnum (RM)
• Black and grey realism → Curved Magnum (RM), 0.25mm Bugpin
• Colour packing and traditional work → Straight Magnum (M1), 0.30–0.35mm
• Large solid fills → Large Straight Magnum groupings (13–15M1)

How to Choose the Right Cartridge

When selecting a cartridge, think in three layers:

1. Line or shade?

Lines require tight configurations (Round Liners). Shading and colour require broader needle groupings (Magnums or Round Shaders).

2. Detail or coverage?

Smaller groupings give precision. Larger groupings increase speed and coverage.

3. Soft or bold finish?

Bugpin (0.20–0.25mm) gives softer results. Standard (0.30–0.35mm) gives stronger saturation.

Recommended Cartridge Setup by Experience Level

Beginners

• 3RL (0.30mm)
• 5RL (0.30mm)
• 7RS (0.30mm)
• 9RM (0.30mm)
• 11M1 (0.35mm)

Intermediate Artists

• Mix of Bugpin and Standard diameters
• Curved + Straight Magnums
• Expanded RL and RS sizes

Professional Artists

• Full diameter range (0.20–0.35mm)
• Multiple taper options
• Full Magnum and RL/RS variations

There is no single “best tattoo cartridge”, only the best cartridge for the specific task. Most professional artists switch between multiple configurations throughout a single tattoo session to maintain control, consistency and efficiency.

Tattoo Needle Gauge and Diameters Explained

Tattoo needle gauge (or diameter) refers to the thickness of each individual needle pin inside the cartridge grouping. This directly affects how much ink is delivered into the skin, how smooth the application appears, and how the skin responds during the tattoo process. Understanding needle diameter is essential when selecting cartridges, especially when working across different tattoo styles such as fine line, realism, or heavy colour packing. For more clarity, remember:

• 0.20mm diameter = #06 gauge
• 0.25mm diameter = #08 gauge
• 0.30mm diameter = #10 gauge
• 0.35mm diameter = #12 gauge

Quick Answer: What Do Tattoo Diameters Mean?

• 0.20 mm (Extra Bugpin): Ultra-fine detail, micro-realism, fine line, and PMU.
• 0.25 mm (Bugpin): Smooth shading, fine linework, and soft black and grey.
• 0.30 mm (Standard): Balanced, all-round tattooing and everyday lining.
• 0.35 mm (Large Standard): Bold lines, traditional framework, and fast colour packing.

How Needle Diameter Affects Tattooing

Smaller diameters create finer, lighter lines but deposit less ink per pass. Larger diameters deliver more pigment in a single movement, making them the go-to choice for bold, saturated work.

Smaller Diameter: More control, cleaner details, and more gradual ink flow (requires slower machine speed or multiple passes).

Larger Diameter: Faster skin saturation, high-impact pigment delivery, and solid single-pass lines.

Tattoo Needle Diameter Chart

Which Needle Diameter Should You Use?

• For Fine Line & PMU: Use 0.20 mm – 0.25 mm for clean, crisp, and exceptionally precise linework.
• For Realism & Portraits: Use 0.25 mm Bugpin to achieve incredibly smooth, airbrushed tonal transitions without hard edges.
• For Everyday Tattooing: Use 0.30 mm Standard for beautifully balanced performance that easily handles a mix of lining, shading, and colour work.
• For Traditional & Colour Packing: Use 0.35 mm Large Standard for maximum saturation, high-visibility master lines, and solid, solid-colour fills.

Needle diameter isn't a matter of "better or worse", it's about balancing control against saturation speed. Most artists keep a variety of diameters on hand to swap out depending on the specific stage of the tattoo.

Tattoo Cartridge Types Explained

Tattoo cartridges come in different configurations, each designed for specific functions such as lining, shading, blending and colour packing. Understanding these differences is essential for building a consistent technique and achieving predictable results. The four most commonly used cartridge types are Round Liners, Round Shaders, Curved Magnums and Straight Magnums.

Round Liner vs Round Shader

Round Liner (RL)

Round Liners use a tight circular grouping of needles designed for precision linework.

Best for:

• Fine line tattoos
• Script and lettering
• Geometric designs
• Outlines
• Detailed work

Key characteristic:

Concentrated ink flow for sharp, controlled lines.

Round Shader (RS)

Round Shaders use a looser circular grouping, allowing more ink distribution across a slightly wider area.

Best for:

• Small shading
• Soft fills
• Whip shading
• Colour blending
• Subtle transitions

Key characteristic:

Smoother ink spread for soft shading effects.

Quick Difference

• RL = precision and structure
• RS = softness and blending

Curved Magnum vs Straight Magnum

Curved Magnum (RM)

Curved Magnums feature a slightly arched needle arrangement that allows outer needles to enter the skin more gradually.

Best for:

• Black and grey realism
• Portraits
• Smooth gradients
• Soft shading
• Organic transitions

Key characteristic:

Soft, natural blending with reduced edge trauma.

Straight Magnum (M1)

Straight Magnums use a flat, stacked needle configuration designed for maximum coverage.

Best for:

• Colour packing
• Traditional tattoos
• Japanese-style work
• Large fills
• Bold saturation

Key characteristic:

Fast, even pigment coverage across large areas.

Quick Difference

• Curved Magnum = soft gradients and realism
• Straight Magnum = bold colour, packing, and structure

Cartridge type defines how ink behaves in the skin more than any other factor. Most professional tattoos use a combination of:

• Round Liners for structure
• Magnums for shading and colour
• Round Shaders for controlled blending

Understanding when to switch between them is what separates basic applications from professional-level consistency.

Why Tattoo Artists Trust Magnum Gen 2

Professional tattoo artists rely on equipment that performs consistently under demanding studio conditions. Magnum Gen 2 cartridges are designed to support that consistency with features such as:

• EO gas sterilisation and individual blister packaging
• Medical-grade safety membrane to reduce backflow
• Needle stabilisation for improved control
• Universal cartridge compatibility
• Multiple diameters, tapers, and configurations for different tattooing styles
• Reliable ink flow designed for consistent performance

Choosing a cartridge that matches both your tattooing style and your machine setup helps improve efficiency, consistency, and confidence throughout every session.

Quick Buyer's Checklist

Before purchasing, ask yourself:

✔ What tattoo style do I specialise in?

✔ Do I primarily line, shade or pack colour?

✔ Which needle diameter best suits my technique?

✔ Do I need Long or Extra Long Taper?

✔ What grouping sizes do I use most frequently?

✔ Is the cartridge compatible with my machine?

✔ Have I selected the appropriate quantity for my workload?

Checking these points before ordering helps ensure you choose the right cartridge for your preferred tattooing style.

Why Buy Magnum Gen 2 Tattoo Cartridges?

Professional artists depend on cartridges that deliver consistent performance throughout long tattoo sessions. The Magnum Gen 2 range combines:

• Multiple needle configurations
• Four professional needle diameters
• Short, Medium, Long and Extra Long Taper options
• Universal cartridge compatibility
• Medical-grade safety membrane
• Needle stabilisation technology
• Individually EO gas-sterilised cartridges supplied in boxes of 10

Together, these features provide flexibility for artists working across fine line, realism, black and grey, colour packing and traditional tattooing.

Quick Buying Summary

If you're still unsure which Magnum Gen 2 cartridge to choose, use this quick reference guide.

Final Thoughts

Choosing the right tattoo cartridge is about more than selecting a needle size. Diameter, taper, grouping and configuration all influence how a cartridge performs in different tattooing applications. By understanding the strengths of each configuration, artists can build a cartridge selection tailored to their preferred techniques while improving consistency and workflow efficiency.

Whether you're creating delicate fine line, smooth portrait realism or bold traditional colour work, selecting the appropriate Magnum Gen 2 cartridge helps ensure your equipment is matched to the task at hand. For the latest configurations, available diameters and product specifications, refer to the relevant Magnum Tattoo Supplies product pages before purchasing.

Looking for Magnum Gen 2 cartridges? Browse the full range of Round Liners, Round Shaders, Straight Magnums and Curved Magnums before continuing this guide.

Direct Answer Blocks

What cartridge is best for black and grey realism?

A Curved Magnum (RM) with a 0.25mm Bugpin diameter and a Long Taper is the absolute best choice for black and grey realism. The arched needle profile eliminates harsh edge lines, while the thinner 0.25mm pins limit skin trauma and ink delivery volume, allowing you to layer incredibly soft, smooth tonal gradients and realistic textures without over-saturating.

What is the difference between a Standard Round Liner and a Traditional Round Liner?

The primary difference lies in the needle taper and tip tightness. A Standard Round Liner uses a long taper tightly pinched at the tip to create narrow, sharp precision lines. In contrast, our Traditional Round Liner (TRL) features a short taper, which naturally causes the pins to sit in a slightly more relaxed, open circular configuration. This allows it to hold a heavier line weight and deposit a bolder, thicker line of ink in a single pass, perfect for old-school traditional work.

What is a Hollow Round Liner used for?

A Hollow Round Liner (HRL) is used for heavy-duty linework and long-stroke script lettering. Because it has an open centre with no middle pins, it acts as an ink reservoir. It pulls a massive amount of pigment up into the tip housing, allowing you to pull exceptionally long, bold lines without running dry or stopping to dip into your ink cap mid-line.

What is the advantage of a Whip Shading Magnum?

The Whip Shading Magnum (WSM) is specifically engineered to create seamless stippling and textured pepper shading. The needle pins are grouped with customised spacing and long or extra-long tapers, meaning that when you swing or "whip" your machine, it effortlessly deposits distinct, beautifully spaced micro-dots rather than a solid blend.

Which tattoo cartridge is best for heavy colour packing?

For dense, high-contrast colour packing, a Straight Magnum (M1) with a 0.35mm Large Standard diameter and a Medium or Long Taper is the best choice. The straight flat edge applies uniform force across a broad area, and the heavy 0.35mm pins provide a large ink flow channel to maximise saturation in fewer passes.

Are Magnum Gen 2 cartridges compatible with my pen machine?

Yes, Magnum Gen 2 cartridges feature universal cartridge compatibility. They are precision-engineered to click securely into all industry-standard universal grips and rotary cartridge pen machines, including popular professional setups like the Dragonhawk Fold 2 Pro, Bishop Power Wand, FK Irons, and AVA EP7+.

What does needle taper mean in a tattoo cartridge?

Needle taper defines the physical length of the sharpened tip point before it meets the maximum diameter of the pin. A Long or Extra Long Taper creates a narrower, longer tip that enters the skin gradually, offering maximum precision and softer deposits. A shorter Medium Taper drives full ink saturation into the skin instantly for faster solid packing.