Stillson wrench with self-gripping and traditional design for one-handed use. body manufactured in traditional forged steel, anti-corrosion treated. long-lasting induction-hardened serrated jaws with a hardness of 55-60 hrc. body with anti-corrosion treatment. epoxy paint. for pipes maximum ø2 in (50,8 mm). individual packaging in cardboard box. standards: us standard ggg-w-651, type i, class b, une 16554 type i, class b, une 16554 i, class b, une 16554