Power operated metal working machine tools, namely, turning tools, hole-making tools, cutting tools, parting tools, grooving tools, threading tools, milling tools, drilling tools, boring tools, reaming tools; Power operated tools for metal cutting, namely, taps, dies, drills, reamers, end-mills, Power operated metal working machine tools, namely, turning, hole-making, cutting, parting, grooving, threading, milling, drilling, boring and reaming tools; Machine tool holders; Inserts for power-operated metal working machine tools, namely, turning, hole-making, cutting, parting, grooving, threading, milling, drilling, boring and reaming tools; Power operated metal working machine tools, namely, taps, dies, drawing dies, drills, reamers, end-mills, tap wrenches, tap extensions, drill taps, drill sleeves, and reamer blades; Milling cutters being machine tools