FK Irons – FK One Adjust: Wireless Tattoo Machine for Ultimate Control and Performance

Technology, Precision and Freedom in One

FK Irons is is pushing the boundaries of tattoo technology. The FK One Adjust is the result of years of development and expertise, created to deliver a fully wireless device that gives tattooists, PMU and SMP artists absolute control with precise and consistent performance.

Thanks to its patented adjustable stroke system, which ranges from 2.0 mm to 5.0 mm, it can instantly respond to your needs without interrupting your workflow. Just turn the ring and adjust the depth to your style – no powering down, no compromises.

Complete Technical Specifications of FK Irons FK One Adjust

The FK One Adjust is carefully crafted with an emphasis on ergonomics, reliability and efficiency. Every element reflects the engineering excellence of FK Irons, a recognized leader in professional tattoo equipment worldwide.

• Dimensions: 152 mm × 38 mm
• Weight: 244 g
• Battery: High-capacity 18500A lithium-ion battery with 6–10 hours of operating time
• Stroke: Adjustable from 2.0 mm to 5.0 mm – can be changed during operation
• Operating Voltage: 5 V – 12 V
• Voltage Adjustment Increments: 0.5 V or 0.2 V according to preference
• Maximum Output Current: 1 A
• Motor: High-quality brushed motor for consistent operation
• Body Material: Aircraft-grade aluminum
• Display: LED screen displaying power in volts or hertz
• Controls: Intuitive buttons with instant response
• Handle: Ergonomic design for maximum comfort during long sessions
• Compatibility: Compatible with FK Irons grips and cartridges
• Warranty: 2 years

Digital Control and Intelligent Performance

The machine features a modern digital LED screen that displays power, voltage and frequency in real time, allowing fine adjustments in 0.5 V or 0.2 V increments. The display can be configured for both right- and left-handed users, ensuring optimal visibility from any angle and maximum comfort while working. This gives artists instant control over all parameters, allowing them to seamlessly adapt the device to their technique – from fine lines to bold color fills.

Ergonomics for All-Day Comfort

The aircraft-grade aluminum body and balanced weight distribution make the FK One Adjust an ideal tool for long workdays. The handle is shaped to reduce pressure on the fingers and wrists, improving control during delicate work. The no-roll cap base keeps the device stable on the workbench – a small but important structural feature that increases safety and comfort while working.

Versatility for Tattooing, PMU and SMP

The stroke range from 2.0 to 5.0 mm makes the machine suitable for a wide variety of techniques:

- Lining – precise and sharp lines
- Shading – smooth transitions and subtle nuances
- Color packing – even and intense pigment application
- PMU applications – precise work on lips, eyebrows and eyeliner
- SMP (Scalp Micropigmentation) – ideal for flawless scalp results

Every style – from soft shading to bold contours – remains fully under your control. Thanks to its versatile performance, the FK One Adjust delivers clean lines, vivid color transitions and even pigment distribution – without compromise.

Consistent Reliability Without Limits

A high-quality motor, precise workmanship and a reliable battery ensure smooth operation throughout every session. The device maintains constant power and speed, ensuring accurate needle penetration and a clean result with every stroke.
Its wireless design eliminates the limitations of cables and provides freedom of movement that every artist will appreciate.

Why Choose FK Irons FK One Adjust

1. Wireless performance and long battery life
2. Patented adjustable stroke system
3. Digital display configurable for right- and left-handed artists
4. Ergonomic aircraft-grade aluminum body and powerful motor
5. Compatible with FK Irons grips
6. Ideal for tattooing, PMU and SMP applications
7. Smooth operation, quiet performance and reliability

FK Irons – A Symbol of Quality and Innovation

FK Irons, an American leader in the production of professional tattoo equipment, stands for top quality, innovation and reliability recognized by tattoo artists around the world. Each model is designed by tattoo artists for tattoo artists and undergoes rigorous testing to meet even the highest expectations.

Experience the Power of FK Irons in Your Own Hands

Get a device that redefines the way you work – gives you what your art deserves. The FK One Adjust is not just a tattoo machine – it’s a modern tool that takes your craft to a new level of perfection, comfort and efficiency.

Package Contents

1x FK One Adjust Wireless Machine, 2x 18500A and 18650A batteries, 1x charging station, spare O-rings, case, instructions

--> Order your FK Irons FK One Adjust today and turn every creation into a professional masterpiece.