7 Machine tools, namely tool holders, cranked tool holders, backworking holders with cooling system, hydro expansion chucks, boring bars, back-off cutters, boring cutters, edge cutters, copying cutters, chambering tools, chambering tools with backward chamfer, internal grooving cutters, grooving and turning cutters, radius internal grooving cutters, threading cutters, radius cutters, boring tools, internal cut-off tools, front grooving cutters, broaching tools and gauges, broaching tools, gauges, drills, countersinks, reamers, centering pointers, high performance chamfering drills, high performance drills, precision counterbores, precision reamers, thread-whirling interpolation tools, thread whirlers, back and front edge mills, profiled endmills, profiled disk engraving cutters, and engraving cutters; machine tool holders; tool bits for machines; cemented carbide tips being tools for machines; modular tools for machines; machine parts, namely toolholders for metalworking machines; adaptors for tool bits being structural parts of machines; spindles for machines tools; spindle shafts being structural parts of engines; metalworking machine tools; machine tools, namely, carbide burs machine tools