Tools as parts of machines in the nature of drill bits for power drills, drill chucks for power drills, thread milling cutters and milling cutters; machine tools for the cutting of materials; mechanically operated recessing tools, namely, grooving tools; mechanically operated tools for machine tools, namely, power operated tools as metalworking tools in the nature of drilling tools; mechanically operated tools, namely, milling cutters; mechanically operated tools, namely, thread milling cutte...