7 MACHINES FOR POLISHING, ABRADING, TRIMMING, SANDPAPERING, GRINDING, SURFACING, ALL FOR USE IN MASONRY SAW, FLOOR SAW, DRILLS, DRILL RIGS, AND WALL SAW; MACHINES TOOLS, NAMELY, DRILLS; ABRASIVE DISCS, ABRASIVE SHEETS, ABRASIVE BELTS, ABRASIVE WHEELS AND ABRASIVE ROLLS, FOR USE WITH POWER OPERATED MACHINES FOR ABRADING, GRINDING, SHARPENING, TRIMMING, SURFACING AND POLISHING; ENGINES OTHER THAN FOR LAND VEHICLES; COUPLINGS AND TRANSMISSIONS FOR MACHINES