FK Irons Modular Collection

The PowerBolt II is the first device to usher in the next generation of wireless batteries.

Backwards compatible – Take your Flux Max, EXO, or Flux to the max with next-level intelligence.

Tech Specs

• FK Irons first, digital built-in menu to select settings
• Easily detachable and compatible with all wireless FK Irons machines (Flux Max, EXO, Flux)
• State-of-the-art motherboard that learns how you like to work, “senses” and adapts in real-time
• Native Killswitch connectivity and improved range
• Responsive eGive settings (0-3)
• Voltage and Hertz readout (adjust by 0.1V or 0.5V)
• Easily read battery life and built-in session timer
• Left- and right-hand screen orientation
• Battery firmware updates via the Darklab app
• Battery life: An average of 5-6 hours of battery life, dependent on functional preferences (needle resistance, machine speed (voltage/hertz), and stroke)
• Full charge in 2 hours when used USB-C charging cable.

Important: Please be aware that all warranty issues are handled exclusively by FK Irons and this may require that the machine be returned by the buyer to FK Irons in the US. For information about this process see the FK Irons repairs page
All FK Irons machines come with a one-year manufacturer's warranty from the date of purchase. This warranty covers any manufacturer's defect. Proof of purchase is required to claim warranty.

FK Irons tattoo machines are the only machines on the market with fully interchangeable, modular designs. This unlocks the potential to modify your machine in even more ways, including altering your machine’s body/stroke.

The body of your tattoo machine directly correlates to its stroke depth. Changing your wireless machine’s body allows you to have multiple stroke options without needing multiple machines.

There are three available options for standalone machine bodies:

• 2.5mm stroke
• 3.2mm stroke
• 4.0mm stroke

Compatible with Flux, Flux Max, and Exo.

Important: Please be aware that all warranty issues are handled exclusively by FK Irons and this may require that the machine be returned by the buyer to FK Irons in the US. For information about this process see the FK Irons repairs page
All FK Irons machines come with a one-year manufacturer's warranty from the date of purchase. This warranty covers any manufacturer's defect. Proof of purchase is required to claim warranty.

The 40mm ergonomic wide grip is the ideal choice for tattoo artists that prefer a larger grip, reducing the amount of wrapping required. This can also help reduce hand clenching for artists who may experience tension from narrower grips during longer sessions.

The wide grip also has a forward-weighted design, aiding in downward needle pressure. At the end of the day, it’s all about preference and using the grip that’s most comfortable for you and your style.

• Aerospace grade aluminium
• 40mm diameter
• Autoclavable

Compatible with Flux, Flux S, Flux Max, FK One and Exo bodies.

Important: Please be aware that all warranty issues are handled exclusively by FK Irons and this may require that the machine be returned by the buyer to FK Irons in the US. For information about this process see the FK Irons repairs page
All FK Irons machines come with a one-year manufacturer's warranty from the date of purchase. This warranty covers any manufacturer's defect. Proof of purchase is required to claim warranty.

With a 28mm diameter, the Slim Grips are designed with comfort in mind, and it’s autoclavable. Made of aerospace grade aluminium, the Slim Grips are designed to work with the machines Ratchet Disk click system to control needle depth. With the natural drawing position in mind, the Slim Grip is compatible with the Flux, Flux S, Flux Max and Exo bodies.

• Aerospace grade aluminium
• 28mm diameter
• Autoclavable

Compatible with Flux, Flux S, Flux Max, FK One and Exo bodies.

Unleash your power. If you love the Spektra Flux, you know the PowerBolt is the brain and power supply of the machine. The detachable PowerBolt battery supply provides an extra peace of mind. Two is better than one – especially for those artists that are on the road or want a backup for when the battery is running low. Attaching and detaching the PowerBolt is easy with just a quick quarter-turn. Simply recharge as needed. Just plug into a USB-C cable. The PowerBolt provides the ultimate peace of mind in backup for busy artists.

• Battery supply for the Flux wireless tattoo machine
• Detach and attach effortlessly with 1/4 turn
• Battery life: Up to 10 hours of life with only 1.5 hours of charging time
• USB-C port: Charge your PowerBolt from any standard USB-C cord. This is perfect for the traveling artist or for trade shows
• LED Indicator : Easily check your operating voltage and battery life
• Changing Voltage: Simply decrease and increase voltage by half increments via two buttons
• Darklab App: Change voltage through voice, access tattoo time and receive firmware updates
• Manufactured in the USA

Classic 33mm Disposable Grip

This disposable tattoo machine grip features a soft, comfortable foam at the tip combined with a durable plastic.

• Compatible with all FK Irons wireless machines (Flux Max, EXO, Flux & The ONE)
• 24 disposable grips per box
• Ergonomic design
• Individually wrapped and sterilised
• Ethylene oxide (EO) gas sterilisation

Disposable tattoo machine grips are a hygienic, convenient alternative to your standard machine grip. Disposable grips help prevent cross-contamination, with the ability to discard the grip in the event of any ink/fluid backflow or from client to client. Artists should still be wrapping their machines properly for optimal hygiene and cleanliness.

Wide 40mm Disposable Rubber Grip

This disposable tattoo machine grip features rubber at the tip combined with a durable plastic.

• Compatible with all FK Irons wireless machines (Flux Max, EXO, Flux & The ONE)
• 24 disposable grips per box
• Ergonomic design
• Individually wrapped and sterilised
• Ethylene oxide (EO) gas sterilisation

Disposable tattoo machine grips are a hygienic, convenient alternative to your standard machine grip. Disposable grips help prevent cross-contamination, with the ability to discard the grip in the event of any ink/fluid backflow or from client to client. Artists should still be wrapping their machines properly for optimal hygiene and cleanliness.