Ключевые слова: automotive, blade, circle, circular, closeup, cnc, cutlery, cutter, diamond, disc, engineering, equipment, factory, friction, grind, grinding, hone, industry, iron, lathe, machine, manufacture, mechanic, metal, metalwork, milling, motion, place of work, polishing, precision, processing, production, rotary, rotation, round, saw, shaft, sharp, sharpener, spark, sparkle, steel, tool, turning, wheel, whetstone, whirl, working, workplace, workshop,