Power-operated machine tools for metal treating and woodworking; Power tools, namely machining and cutting tools in the nature of drills, chisels, lathe tools, deburrers, files (tools), milling cutters, planes, reamers, saws, grinding tools, cutting blades, cutting rotors, cutting inserts, countersinks for the aforesaid machines and machine tools all being for use in the metalworking, woodworking and plastic processing; holders and receptacles for these tools