A tattoo machine is a handheld device used by tattoo artists to apply permanent tattoos on the skin. The machine consists of several parts: the power supply, the tattoo needle, the tube and grip, and the foot pedal. These parts, known as tattoo machine parts, work together to create the tattoo design. The power supply provides the necessary energy to move the tattoo needle, while the tube and grip hold the needle in place and allow the tattoo artist to control its movement. The foot pedal controls the speed and movement of the tattoo needle. By pressing the foot pedal, the tattoo artist can adjust the needle's speed and movement to create the desired design.