Hexagonal head drill bit set selected from Industrial steel bit, hardened to reduce wear outs. ensures their durability. Small in size and lightweight, convenient to carry around. Strong magnetic tip can easy to hold the screws and tightly absorb the screws. Not slipping during use. The magnetism not decay after multiple use Can be used with electric screwdriver, hand screwdriver, electric drills, combination general purpose tool and any standard drill. Usually used for mechanical equipment, automobiles, motorcycles, furniture, electronic equipment.