Die Grinder, Voltage 12V DC, Max. Speed 20,000 RPM, Grinder Orientation Straight, Switch Type Paddle, Brushless Motor Yes, Cordless Tool Kit Contents (1) Bare Tool, Accessory Free Tool Change No, Collet Size 1/4 in, Speed Ranges 0 to 20,000 RPM, Number of Speed Settings 3, Lock-Off Switch Yes, Lock-On Switch Yes, Brake Type None, Anti-Kickback Clutch Type None, Anti-Restart Technology No, Safety Stop Mechanisms None, Tether Style Tether Capable, Dust Sealed Switch No, Grip Style Barrel Grip