mechanic in a workshop using a vice unscrews a nut with wrenches, closeup. using old spanner wrench and clamp to remove nut from

background bolt clamp close construction diy equipment fix garage grip handicraft hardware industrial industry installing instrument iron job loosen loosening maintenance mechanic mechanical metal metallic nut old remove renovation repair repairman screw service spanner steel thread tighten tightening tool turn unscrews vice work workbench worker workplace workshop wrench