Die Grinder Kit Voltage 12V DC Max Speed 20 000 RPM Grinder Orientation Straight Switch Type Paddle Battery Capacity (1) 5.0Ah (2) 2.0Ah Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool (3) Batteries (1) Charger Accessory Free Tool Change No Collet Guard Type None Collet Size 1/4 in Speed Ranges 0 to 20000 RPM Minimum Speed 0 RPM Number of Speed Settings Continuously Adjustable Lock-Off Switch Yes Lock-On Switch Yes Brake Type None Anti-Kickback Clutch Type None