Bondhus pair of Balldriver screwdrivers feature color coded and ergonomically designed handles that are comfortable to use. Only available from Bondhus, Protanium steel blades means this is the strongest ballpoint available. Black type. Handle is proportioned to provide maximum torque without breakage. Provides the greatest time savings for maintenance, assembly, and adjustment of hexagonal socket screws. Regular length. The Yellow color coded handle means its measurement is in inches not metric). The size is noticeably stamped within the handle.