1SMOOTH USE: Tattoo coil machine in the use of the process after the hand large angle changes will not appear high and low frequency intermittent sound, the sound is crisp and smooth. 210 WRAPS: Coil machine uses 10 wraps copper core coil, which designed for coil machine, with stable current transmission. 3LINER SHADER: Stable working speed and strength, so that it works for a long time without getting hot. Lightweight, strong force, low power. 4WORKING VOLTAGE: Tattoo coil machine normal starting voltage is 5V, working voltage is 712V, liner and shader can easily control. 5PRECISE AND STABLE: The frame is made of alloy, lightweight and processed by precise cutting to avoid size errors of manual machines and to ensure size accuracy and stable operation.