Ключевые слова: automatic, blade, caliber, circle, circular, closeup, cut, cutter, cutting, diamond, disc, equipment, factory, grinder, hss, industrial, industry, instrument, iron, machine, machinery, manufacture, manufacturing, metal, part, power, production, rotary, rotate, round, safety, saw, sharp, sharpen, sharpener, sharpening, speed, steel, surface, technical, technology, tool, tooth, welding, wheel, workshop,