Milwaukee® 6 mm X 19 mm X 6 mm Ball Bearing is designed for reversing drain cleaners, reversing drills, magnum two speed hammer drills, magnum screw shooter, positive clutch reversing screwdrivers, 0 - 2500 RPM reversing screwdrivers, snap action clutch screwdriver, power unit, snap action clutch power unit, drywall screwdrivers, D.I drywall screwdrivers, T.S.C reversing drywall screwdrivers, screw guns, drills, drain cleaners, screwdrivers, cordless hammer drills, cordless drills/drivers, electric drills/drivers, impact wrenches and 18 ga swivel head shears.