Hilti 03482657 SID 18-A CPC 18-volt Cordless Impact Driver with Universal Plastic Case and 1/4-Inch Hexagon Snap Chuck 18+-voltage Speed 1 no load 1000 rpm; Speed 2 no load 1500 rpm; Speed 3 no load 2500 rpm Electronic speed control; 3450 blows per minute 1/4-Inch hexagon snap chuck Max torque 3rd speed: 1,460-Inch-Pound, 2nd speed: 973-Inch-Pound; 1st speed: 531-Inch-Pound