background, business, close, cnc, construction, cutter, device, dirty, drill, drilling, engineer, engineering, equipment, exhaust, fabrication, factory, garage, hand, industrial, industry, lathe, machine, machinery, machining, man, manufacture, manufacturing, marble, mechanical, metal, metalwork, metalworking, old, operating, plant, processing, production, professional, screw, shop, spiral, stainless, steel, stone, technology, tool, up, workpiece, workplace, workshop