Cordless Die Grinder Voltage 12V DC Max Speed 24 500 RPM Grinder Orientation Right Angle Switch Type Paddle Battery Capacity (1) 4 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 24 500 RPM Number of Speed Settings 4 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