No-Hub Driver, Autofeed No, Chuck Size 1/4 in, Battery Included / Bare Tool Bare Tool, Voltage 12V, Max. Torque 80 in-lb, No Load RPM 0 to 250/0 to 750, Clutch Style Adjustable, Series M12, Cordless, Brushless Motor No, Handle Type Pistol Grip, Cordless Tool Battery Type Li-Ion, Battery Included No, Battery Pack Replacement 2XKZ6, Features These MILWAUKEE Rotary Hammers have three settings: hammering with rotation, hammering-only, and chisel adjustment., Tool Length 7 1/2 in