cutting metal sheet with a special electric tool. sparks fly. self-repair of the roof, corrugated iron roof. close-up photo

action blade business busy circular close construction corrugated cutter cutting dirty disc electric electrical engineer engineering flash fly glove glow grinder hands hard heat horizontal iron job line machine manual metal metalwork motion one person photo photography production profession protective repairman roof safety selfrepair sheet skill skilled sparkle sparks special speed star steel technical technology tool turning working