Removes broken and damaged threaded studs fast. Suitable for use with 1/2"Sq and 3/8"Sq drive air impact wrenches. Works effectively on broken, rusted, stripped and smooth studs. Carbon Steel casing with Chrome Molybdenum jaws. * For use with 1/2" and 3/8" impact wrenches. * Fits studs from 6-12mm(1/4"-1/2"). * Carbon Steel casing with Chrome Molybdenum jaws. * Works effectively on broken, rusted, stripped and smooth studs. * Model No. AK7182 https://elecena.pl/product/27196667/sealey-ak7182-impact-stud-extractor-6-12mm-2pc-set 2024-11-09 https://elecena.pl/product/27196667/sealey-ak7182-impact-stud-extractor-6-12mm-2pc-set 2025-09-12