Heavy-duty pipe wrenches comply with federal specifications;Ridgid covers its products with a lifetime warranty against defects in material;This product is made of high quality material;Heavy-duty drop-forged cast iron housing is heat-treated to resist distortion or breakage.;Hardened teeth provide tremendous bit. Easy-spin adjusting nut is heat-treated for durability.;The I-beam handle's wide design provides excellent weight distribution.;Unique hammer head design provides a flat surface for hammering.