Address:
20-22 Rodney Road, North Geelong, Victoria, Australia
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Phone: 03 5272 1161
Email: sales@bstattoo.com.au
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Usually ready in 24 hours
Description
Built to Adapt, Engineered to Perform.
This is FK Iron's first machine to introduce patent-pending stroke adjustment technology, allowing changing strokes while the machine is running from 2.0mm to 5.0mm in 0.5mm increments. With their artist first design, the Adjust adapts to any style or technique with ease. Take on your boldest linework to your finest detailing with this one machine.
With their updated battery it shows both voltage and hertz and with the drop in battery design it is easy to keep the batteries fresh and have your machine last longer. Long sessions won't be a problem as each battery will last around 6 hours, and each Fk Irons One Adjust comes with two inner batteries for keeping in going.
The FK One Adjust’s precision-engineered motor system pairs a fixed-stroke cam with a refined paddle and slider assembly that adjusts stroke length by moving closer to or farther from the paddle’s center. This constant-load design minimizes friction and wear, delivering long-lasting, high-caliber performance.
Product Manual: Download PDF
Warranty
Features
Technical Information
Shipping & Returns
All deliveries are sent by Australia Post with the choice of Express or Parcel post at checkout. Delivery charges are calculated using actual Australia Post rates. Please checkout here for more info
OVERVIEW
- VOLTAGE READOUT SCREEN
- ERGONOMIC GRIP
- ADJUSTABLE STROKE BRUSHED MOTOR
- RATCHET, ADJUSTABLE NEEDLE DEPTH SYSTEM
CREATED FOR ARTISTS WHO:
• Need one machine for lining, shading, and packing
• Adjust on the fly without losing focus
• Travel light to cons or guest spots
• Expect tough, top-tier performance
WHY CHOOSE FK ONE ADJUST?
ARTIST-FIRST DESIGN
Designed with artist input from the get-go, this machine is made to take on the challenges you face day to day.
RELIABLE & STABLE
An upgraded digital display gives you total clarity over your operating parameters.
INNOVATION THAT DELIVERS
Unlike other adjustable stroke machines, FK One Adjust lets you change your stroke on the fly without ever having to power down.
VERSATILITY WITH NO LIMITATIONS
FK One Adjust adapts to any style or technique, so you don’t have to choose between machines.
BUILT TO OUTLAST
Durable and supported by our upgraded global service program, the FK One Adjust is with you for the long-haul.
ARTIST-FIRST DESIGN
Designed with artist input from the get-go, this machine is made to take on the challenges you face day to day.
RELIABLE & STABLE
An upgraded digital display gives you total clarity over your operating parameters.
INNOVATION THAT DELIVERS
Unlike other adjustable stroke machines, FK One Adjust lets you change your stroke on the fly without ever having to power down.
VERSATILITY WITH NO LIMITATIONS
FK One Adjust adapts to any style or technique, so you don’t have to choose between machines.
BUILT TO OUTLAST
Durable and supported by our upgraded global service program, the FK One Adjust is with you for the long-haul.
BUILT TO ADAPT, ENGINEERED TO PERFORM
TAKE A PEEK AT THE DEMO VIDEO:
EYEBALL THE DETAILS
GRAB IT FOR THE STUDIO
Ergonomic Grip
For comfort and control during long sessions
Twist & Lock Battery Cap
- Long Cap for NCR 18650A battery
- Short Cap for NCR 18500A battery
Adjustable Stroke Technology
- Patent-pending stroke adjustment system lets you adjust stroke length without powering down.
- Stroke adjustment from 2.0mm up to 5.0 mm in 0.5mm increments.
Control Buttons
- Memory Save (Voltage/Hertz)
- Change Screen Orientation (Left/Right)
- Toggle Display (Voltage/Hertz)
Digital Screen (Dual Voltage + Hertz Display)
Can be configured for both right- and left-handed artists,ensuring optimal visibility from any angle.
THE FK STANDARD, REDEFINED
About the brand
FK Irons – Built for Artists Who Expect More
Founded in 2007 in Miami, FK Irons was created with a clear mission: tattoo artists deserve tools that go beyond “good enough.” What started in a small workshop has grown into one of the most respected names in tattoo technology, known for pushing the boundaries of precision, performance, and innovation. From early handcrafted machines to advanced wireless systems like the FK Irons Xion, FK Irons EXO, FK Irons Flux Max, and FK Irons ONE, every machine is designed to feel like a natural extension of the artist’s hand.
Proudly designed, machined, and assembled in the USA using aerospace-grade materials, FK Irons combines engineering expertise with real artist feedback. Each component is CNC-machined for exceptional precision and durability, ensuring machines that can keep up with demanding studio work. With features like Bluetooth® connectivity, adaptive eGive, and advanced stroke adjustment technology, FK Irons continues to set the standard for tattoo machines that help artists work smoother, faster, and with greater control.
About the brand
FK Irons – Built for Artists Who Expect More
Founded in 2007 in Miami, FK Irons was created with a clear mission: tattoo artists deserve tools that go beyond “good enough.” What started in a small workshop has grown into one of the most respected names in tattoo technology, known for pushing the boundaries of precision, performance, and innovation. From early handcrafted machines to advanced wireless systems like the FK Irons Xion, FK Irons EXO, FK Irons Flux Max, and FK Irons ONE, every machine is designed to feel like a natural extension of the artist’s hand.
Proudly designed, machined, and assembled in the USA using aerospace-grade materials, FK Irons combines engineering expertise with real artist feedback. Each component is CNC-machined for exceptional precision and durability, ensuring machines that can keep up with demanding studio work. With features like Bluetooth® connectivity, adaptive eGive, and advanced stroke adjustment technology, FK Irons continues to set the standard for tattoo machines that help artists work smoother, faster, and with greater control.
FAQ
What voltage range should I run this machine at?
It runs safely between 5V and 12V. Use the 0.2V step buttons to dial in your preferred hit.
Just don’t push past 12V — the machine works best within spec.
Can I change the stroke while the machine is running?
Absolutely. Twist the battery housing while holding the machine ring:
- Clockwise = longer stroke
- Counterclockwise = shorter stroke
Each click = 0.5mm, adjustable from 2.0mm to 5.0mm.
What batteries and chargers should I use?
Use only Sony, LG, Samsung, or Panasonic batteries.
Charge them using the included eFest Slim K2 USB-C charger. It auto-shuts off when full.
My machine won’t turn on. What should I check?
Most of the time, the battery cap isn’t fully tightened.
Make sure the arrow and lock icons line up, the cap is threaded completely, and that the battery is properly seated.
What’s the warranty on the FK ONE Adjust, and how do I make sure it stays valid?
Your machine comes with a 2-year warranty that covers any manufacturing issues. If something goes wrong that’s not your fault, FK Irons will repair or replace it for free.
To keep your warranty valid, just avoid the big no-no’s:
- Don’t open it up or mess with the internals
- Don’t drop it or expose it to moisture
- Don’t use cartridges without a membrane
- Don’t run it past its max voltage
- Don’t autoclave it
And don’t forget to register your machine by scanning the QR code on the box — that activates your warranty and gets you product updates.
