Coil Machines Versus Rotary Machines | Painful Pleasures Community
Coil Tattoo Machines. The coils in an EM machine generally range from 8 to 10 wrap. The coils create the impedance, or resistance used to properly regulate the machine's speed and power. This causes less trauma to the skin. Coil tattoo machines are commonly broken into three groups: liners, shaders, and color packers.