Ключевые слова: boring, cnc, cut, cutter, drill, energy, engineering, equipment, factory, industrial, industry, iron, lathe, machine, machinery, machining, manufacture, manufacturing, mechanical, metal, metalwork, metalworking, milling, precision, processing, production, rapid steel, screw, sharp, spiral, steel, tap, taper, technology, thread, threading, tool, tools, turning, working, workpiece,