Hitachi 728098 1/4-Inch Hex Drive Magnetic Hex Socket Set, Satin, 4-Piece 1/4-Inch hex drive to a 7/16, 3/8, 5/16 and -Inch hex Adds versatility to your power drills Coated in a satin finish, this quick-change hex socket is ideal for contractors, serious do-it-yourselfers, machine shops, and mechanics Hitachi offers the best durability and speed for general purpose drilling applications Comes with a 30-day limited warranty