M4 two-speed screwdriver
Photo credit: Milwaukee
Milwaukee Tool's M4 two-speed screwdriver packs more power in a smaller size. Features a 4 V REDLITHIUM 2.0 battery technology, 1/4" quick-change chuck, 44 in/lbs of peak torque and a 21-position clutch with auto shut-off. Has two speeds, 200 and 600 RPM, offer further user control for precision work. At only 244 millimeters in length and under one pound, the M4 Screwdriver is easy to use with one hand, according to the manufacturer. Can drill more than 200 holes per charge, a 50 percent improvement in runtime.