UNi-K — Internally Adjustable Stroke Rotary Tattoo Machine

The UNIK is a direct-drive rotary tattoo machine built around an internally adjustable stroke system. Designed for artists who need both linework and shading from a single pen, it offers five stroke settings from 2.5mm to 5.0mm without changing machines. Powered by a brushless motor and two 18500 batteries, the UNIK delivers consistent torque, extended runtime, and Bluetooth pedal compatibility. Whether you're pulling crisp lines or building smooth gradients, the UNIK adapts to your technique with minimal setup time.

Key Features  

- Internally Adjustable Stroke (2.5–5.0mm) — Switch between 2.5, 3.5, 4.0, 4.5, and 5.0mm strokes using the included tools. One machine handles lining, packing, and shading.  

- High & Low Torque Modes— High Torque mode delivers consistent penetration for crisp line work. Low Torque mode provides smoother needle action, ideal for soft gradient shading.  

- Dual 18500 Batteries — Two 1600mAh lithium-ion batteries extend working sessions. Timing data is retained even after battery changes.  

- 1.47” OLED HD Color Screen — Displays Bluetooth connection, battery level, working voltage, frequency, and elapsed time. Clear readout in any studio lighting.  

- 4-Slot Memory Function — Save settings for H:M1, H:M2, L:M1, and L:M2. Switch instantly between preferred configurations.  

- Bluetooth Connectivity — Pairs with AVA Bluetooth foot pedal for wireless control.  

- Two Grips Included — Extra grip (39mm and 32mm diameters) lets you tailor ergonomics to your hand size or style.  

- Precise Voltage Adjustment — Tap “+”/“–” for 0.1V steps, or hold for 1V steps. Fine-tune without menus.

Specifications  

- Material : Aircraft aluminum  

- Motor : Brushless motor  

- Drive System : Direct drive  

- Stroke : 2.5 / 3.5 / 4.0 / 4.5 / 5.0mm (internally adjustable)  

- Motor Speed : 10,500 rpm  

- Timing Function : Auto-start when opened; retains data after battery change; reset by holding “+” and “–” for 3s  

- Memory Slots : H mode (M1, M2), L mode (M1, M2)  

- Voltage Adjustment : 0.1V step (tap) / 1V step (hold)  

- Torque Modes : High Torque (line work) / Low Torque (shading)  

- Screen : 1.47” OLED HD color display  

- Battery : 18500 Li-ion, 1600mAh (two included)  

- Battery Voltage : 3.7V  

- Power Intake : 5W  

- Needle Protrusion : 0–5mm  

- Charging Input : 5V / 2A - Pen Net Weight : 218g - Pen Size : 127mm × 32mm - Grip Diameter : 39mm and 32mm - Colors : Black, Gold, Grey, Pink - Included : 1 machine, 1 extra battery, 1 extra grip, 1 charging head, 1 data cable, 1 flat-head screwdriver, 1 hex wrench, 1 travel bag, 1 outer box, 1 manual