The HP-2 is the largest selling hand rivet tool in the industry. Known and trusted for durability, quality and performance, the HP-2 is often copied but never equaled. 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. Other quality features include: precision diecase, high-strength aluminum alloy body; drop-forged carbon steel upper handle; and thick, cushion-molded vinyl grips for comfort. The HP-2 sets up to 3/16" steel rivets and comes with four mounted nosepiece (3/32" , 1/8" , 5/32" and 3/16" ) and a service wrench.