Brushless AC Motor improves performance and efficiency in demanding applications. Electronic soft start to limit start-up current and reduce kick reaction. Anti-vibration side and back handle for user comfort. Tool free adjustable guard. Electro-mechanical clutch reduces the "kickback" transmitted to the operator if the cutting disc jams. Variable Speed Control to set optimum cutter speed for different materials. No volt release switch prevents the unit starting when plugged in, even if the switch is lock on. Switch must consciously reset before power is delivered. Electronic motor brake for added control.