The Robo Key is a major innovation in drum keys: for every turn of the wrist, the key can turn up to 6x as fast! The black gear drive contains the key to the speed - by holding the black part in place and turning the red top, a 4:1 ratio gear is initiated, turning every one hand revolution to four tension rod revolutions. By rotating the gear drive and handle in opposite directions, a 6:1 ratio is possible. A switch on the handle has three settings : tighten, loosen, and normal (for regular, fine tuning). Robo Key cannot become self-aware, and follows the Three Laws of Robotics.
