23 MACHINES FOR MOUNTING AND DISMOUNTING TIRES ON WHEELS AND ASSOCIATED TOOLS-NAMELY, BEAD BREAKERS AND BEAD EXPANDERS; TIRE CASING SPREADERS; MOTOR BLOCK REPAIR TOOLS-NAMELY, TAPER PLUGS, REAMERS, COUNTERSINKS, DRILL JIGS, AND TAPS; PRESSURE GUNS FOR APPLYING VISCOSE MATERIALS; AIR HAMMERS, GRINDERS, AND SAWS AND PARTS THEREOF