Irwin t54125 5 piece speciality set 3 4in 19mm 13 16 in 21mm 7 8 22mm irwin 54125 p save time removing rounded off rusted tight or painted over bolts with irwin t54125 5 piece speciality set the universal unique design fits all type of fasteners and reduces stripping damage by driving the fastener on the sides instead of forcing the corners p p the specially designed reverse spiral flutes bite down and being tougher than tool steel easily grips the bolt and extracts it the