Ключевые слова: abstract detail, angle grinder, artistic, background, ball bearing, beautiful, blue, closeup, cog, cogged, cogs, cogwheel, component, connect, cooperation, design, disc, engine, engineering, equipment, fastener, gear, gearbox inside, gearwheel, green, industrial research, industry, interlocked, involute, lock, locknut, machine, machinebuilding, machinery, macro, mechanical, mechanism, meshing, metal, metallic, nobody, nopeople, nut, perfect, pinion, power tool, precision, quality, repair, rolling, rotation motion, science, service, shade, side, steel part, stiff, success, tech, technical work, technology, teeth, tone, transmission, wheel,