I'm a professional service tech and have used this product everyday for many years. It is the very best available. Compact, rugged, with a long lasting battery. The gears lock up when off and can be used as a manual screwdriver when extra force is needed.Get more detail about Panasonic EY503B-1 2.4-Volt Ni-Cad 1/4-Inch Hex Cordless Drill/Driver.
