Milwaukee®, 3602-20, Hammer Drill, Bare Tool/Kit: Bare Tool, Compact Brushless, 1/2 in Chuck, Metal Chuck, 0 to 25500 bpm Blows per Minute, 25500 ipm Impact Energy, 1700 rpm No-Load, 2 Speed, 550 in-lb Torque, 18 V, Li-Ion Battery, Glass-Filled Nylon Housing Material, Pistol Handle, Black/Red, 7.95 in H x 2.2 in W x 5.8 in L Dimensions