Milwaukee® M18™ Hammer Drill/Driver, Cordless, Bare Tool, 1/2 in Chuck, Metal Single Sleeve Ratcheting Lock Chuck, 28800 bpm, 400/1800 rpm No-Load Speed, 2 Speed, 500 in-lb, 18 VDC, Lithium-Ion Battery, No Battery Included, Yes Reversible, Metal Housing, Mid Handle Grip, Red, Trigger Switch Control, 7-3/4 in L x 7-3/5 in H