·The spark plug sockets to work simplify that are compatible for numerous cars, trucks, motorcycle, and other engines
·The 12-point opening with thin wall and the 6-point opening exactly fits the nut of a spark plug, and locking extensions allow you to reach deep into spark plug wells
·The patent retaining spring firmly grips the nut of plugs don't worry about magnet failure or rubber grommet falling
·Chrome vanadium steel with mirror polish finish for easy cleanup and laser etched sizes on each bit for easy identification