Fk one adjust wireless tattoo pen

The FK One Adjust is engineered for artists who demand freedom, precision and consistency in every session. Designed and built in the USA, this wireless pen-style machine combines the compact feel you love with serious performance under the hood.

With a patent-pending adjustable stroke mechanism (2.0mm–5.0mm in 0.5mm increments), you can adapt from crisp lines to soft shading to bold colour packing - all without changing machines mid-session.

A digital display shows your actual output in volts or hertz, giving you real-time performance feedback under load, so you always know exactly how your machine is hitting.

The weight is approximately 244g with the 18500A battery and 268g with the 18650A battery, both easily drop-in, designed for reliability during long sessions.

Built with aerospace-grade aluminium and powered by FK Iron’s signature motor system, the FK One Adjust delivers stable torque, smooth hits, and a balance that keeps you going hour after hour. Choose one machine and let it do multiple jobs.