HP-2 Known and trusted for durability, quality and performance. Its square shoulder fulcrum pin of cold-formed heat-treated steel prevents pin rotation that can elongate the engaging holes and cause premature tool failure in imitation tools. Features include: precision die-case, high-strength aluminum alloy body, drop-forged carbon steel upper handle, Thick, cushioned-molded vinyl grips for comfort. The HP-2 sets up to 3/16 steel rivets and comes with four mounted nosepieces (3/32, 1/8, 5/32 and 3/16) and a service wrench