Wear parts for earth working ground engaging trenchers, diggers, scrapers, elevating scrapers, horizontal directional drills, trencher chains, links and bits, cuffing teeth, carbide hard faced teeth, rock teeth, rotary teeth, ground breakers, buckets, backhoe buckets, bucket pins and bushings, bucket teeth, directional boring bits, drilling bits, horizontal drilling bits, horizontal directional drilling bits, pilot bits, backreamer teeth, backreamers, drive chucks, subsavers, horizontal drill pipes, rollers, leaf chains, cutting edges, sprockets, drive, idler and driven sprockets, rollers, bearings, booms, belts, drive shafts, plow blades, vibratory and static plow and pull blades, augers for digging, auger teeth, auger pilot bits, auger flightings, power tool attachments, namely, trenching digger teeth, trench cutters, teeth retaining clips, mounting plates for teeth, spacer bars, spacer blocks, spacer tubes, trenching machine chains, links, teeth and bits, feller buncher, feller buncher teeth, hot saw teeth, forestry machinery and equipment, tree harvesting machines, brush chippers, chipper blades, stump grinders, tree stump cutters, mulchers, mulcher teeth, and component parts and replacement parts therefor, and assemblies of the above items