Rotary Tool Voltage 12V DC Max Speed 27 500 RPM Speed Setting Variable Speed Collet Size 1/8 in Brushless Motor Yes Number of Speed Settings 12 Minimum Speed 5 000 RPM Accessory Free Tool Change No Housing Material Glass Filled Nylon Overall Length 9.1 in Tool Weight 0.8 lb Power Source Cordless Built-In Light Yes Application Cutting Grinding Polishing Sanding