0 - 3000 strokes per minute, a 3/4" stroke length, and a 12A motor. The gear protecting clutch extends gear and motor life by absorbing high-impact forces and a Quik-Lok blade clamp offers fast, tool-free blade changes. To provide greater user comfort, a counter-weighted mechanism reduces vibration for smoother operation and a redesigned front grip area provides best in class ergonomics. Carrying case included. No. 6509-31: Amperage: 12A, Blade Stroke: 3/4 In., Variable Speed: Yes, SPM: 0-3000 SPM, Tool Weight: 7.1 Lb., Dimensions: 19 In. L, Cord Length: 8 Ft., Pkg Qty: 1, Package Type: Box