Ключевые слова: blade, circle, circular, construction, cut, cutting, disc, disk, electric, engineering, equipment, flash, grind, grinder, grinding, hand, industrial, industry, iron, light, machine, man, manual, manufacture, manufacturing, mechanic, metal, metalwork, part, power, production, protection, rotate, round, safety, saw, spark, speed, spin, steel, technical, technology, tool, treatment, turning, welding, wheel, work, work tool, worker,