The Marson HP-2 is the number one selling hand rivet tool in the industry. Known and trusted for durability, quality and performance, the HP-2 is often copied but never duplicated. 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 die-cast, high-strength aluminum alloy body; drop-forged carbon steel upper handle; and thick, cushion molded vinyl grips for comfort. Sets up to 3/16" steel rivets and comes with four mounted nosepieces in sizes: 3/32", 1/8", 5/32", and 3/16". 2 lbs (1Kg) shipping weight.