Die Grinder Voltage 12V DC Max Speed 20 000 RPM Grinder Orientation Straight Switch Type Paddle Battery Capacity (1) 2 Ah Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (1) Battery 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