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FK ONE Adjust Wireless Tattoo Machine

FK ONE Adjust Wireless Tattoo Machine

Brand: FK Irons

Regular price £718.80

Sale price £718.80

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  • Tune it to your style
  • Recharge, no batteries
  • No cables in your way
  • Set it how you like
  • Less strain on your body
Colour: Stealth Black

Pay in 3 interest-free payments of £239.60 with Learn more

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Product details

Product details

The FK One Adjust marks a new era for FK Irons. Built to adapt and engineered to perform, it delivers true FK power, precision, and comfort, designed with direct artist input to meet the demands of modern tattooing.

This is FK Irons’ first machine to feature patent-pending stroke adjustment technology, allowing you to instantly adjust your stroke length between 2.0mm and 5.0mm in 0.5mm increments without powering down. Whether you’re packing colour, creating bold lines, or working on delicate shading, the FK One Adjust adapts to every style and technique with zero compromise.

The upgraded digital touchscreen display provides full visibility over your operating parameters, letting you view your power output in either volts or hertz, whichever you prefer. Hertz mode gives a detailed insight into your machine’s performance, showing the exact frequency of needle movement per second. The ambidextrous layout ensures optimal visibility for both left- and right-handed artists.

Inside, a precision-engineered brushed motor and refined internal assembly deliver the smooth, stable performance FK is known for. The machine’s 6061 T6 aluminium body offers a balanced, ergonomic feel, while the anti-roll cap keeps it secure during sessions. Powered by dual rechargeable Panasonic batteries, the FK One Adjust provides up to 13 hours of total runtime and can be used with both short and long caps depending on your setup.

Technical specifications

Colour: Stealth Black or Pop Pink

Stroke length: Adjustable 2.0mm–5.0mm in 0.5mm increments

Adjustment system: Patent-pending twist mechanism (on-the-fly control)

Voltage range: 5–12V with 0.2V precision increments

Display: Dual voltage + Hertz readout (ambidextrous configuration)

Motor: Brushed motor with refined paddle assembly

Power output: Max 1A current

Material: 6061 T6 aluminium

Grip: Click-ratchet adjustment, ergonomic FK balance

Connection: Universal cartridge compatibility

Compatibility: Works with other FK modular grips

Dimensions (L x D): 152mm x 38mm

Weight (with 18500A short battery): 244g

Weight (with 18650A long battery): 268g

Battery life: ~5.5 hours (short cap) or ~6.5 hours (long cap)

Charging: Dual battery dock included

Charging time: Approx. 1 hour per battery

Manufactured: USA

Included: 1x FK One Adjust machine, 2x Panasonic rechargeable batteries (1x 18500A, 1x 18650A), 2x interchangeable caps (1x short, 1x long), 1x dual battery charging dock, 1x USB charging cable, 1x operating manual

Delivery information

Enjoy free next working day delivery with DPD to all mainland UK addresses on orders over just £99. Place your order before 16:00, and your items will be on their way to you the very same day.

Delivery prices start at just £4.95 for other locations. Opt for Saturday delivery at checkout if that works better for you.

Near Cheshire, Merseyside, or Manchester? Feel free to pick up your order directly from our Magnum HQ at WA7 1DX.

Read the full delivery information

Frequently asked questions

Is this a coil or rotary machine?

This is a rotary machine.

What is the battery life?

Battery life: ~5.5 hours (short cap) or ~6.5 hours (long cap)

How many batteries come with this machine?

Included: 1x FK One Adjust machine, 2x Panasonic rechargeable batteries (1x 18500A, 1x 18650A), 2x interchangeable caps (1x short, 1x long), 1x dual battery charging dock, 1x USB charging cable, 1x operating manual

What else is in this range?

This sits in our FK Irons Machines range, alongside 3 other products. Have a look if you want to compare or stock up at the same time.

See the full range

What if it's not right when it arrives?

Tell us as soon as you spot a problem and we'll put it right with a repair, a replacement or a refund. Our terms explain how to make a claim.

Read the full returns policy

Can I spread the cost?

Yes. You can pay in three with either Klarna or PayPal at checkout. Your total is split into three interest free payments: one when you order, then one a month for the next two months.

Both run a quick check and decide at checkout, so it is not offered on every order. PayPal Pay in 3 needs a basket between £30 and £2,000. Klarna charges a fee if a payment is more than 14 days late; PayPal does not.

How Klarna Pay in 3 works

How PayPal Pay in 3 works

Can you match a price I've seen elsewhere?

Yes. If you spot the same branded product for less at another UK shop, we'll match it. Just get in touch before you order, on 01928 560604 or info@magnumtattoosupplies.co.uk, and tell us where you saw it. It has to be the identical item, new and...

How price matching works

Do I earn points on this order?

Yes, as long as you have a Magnum account. You earn a point for every £1 you spend, and they're added once your order has been sent. Save them up for money off a future order.

How do I track my order?

As soon as your order leaves us, we'll email you a tracking link so you can follow it all the way to your door. Order before 4pm on a weekday and it goes out the same day.

You are in good hands

Reviews
5.0 (278)
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Sophie ✔

12 days ago

10 out of 10 customer service! Rebecca was absolutely fab with my order and helped out so much definitely give them a raise 💖👌

Stephen Postle ✔

25 days ago

Magnum have always been a solid supplier for all my tattoo equipment needs, nothing is ever too much trouble!! It's always super cool knowing they're a small family owned business who always look out for their customers. Would highly recommend to anyone, even non tattooists as they do a great aftercare selection!!

ArtAttack ✔

3 weeks ago

Brilliant company staff great knowledge easy fast delivery...

Elana Green ✔

a month ago

I recently bought the new Atlas Hydraulic Tattoo bed from magnum, alongside a lot of other items I always repurchase from magnum. Aside from the outstanding quality of products, the delivery & service is always incredible! Rebecca & Glenn personally delivered my items, ensuring everything was smooth with delivery updates. The team go above and beyond to help anyone ordering from Magnum, and as always- I would highly recommend. Brilliant items, incredible team ❤️

Tuan ✔

2 months ago

Great selection of products and stock. Quick shipment and packing. Recommend.