Ключевые слова: cnc, cog, cutter, cutting, cylindrical, engineering, equipment, factory, gear, hob, hobbing, industrial, industry, involute, iron, lubricant, machine, machinery, machining, manufacture, manufacturing, master, mechanical, metal, metalwork, metalworking, milling, oil, oiling, precision, processing, production, quality, services, shaper, steel, technology, tool, working,