Arrow T50 Heavy-Duty Staple GunModel No: T50. The Arrow T50 Heavy Duty Staple Gun is a classic American-made tool. As Arrow’s flagship product, it’s known for its dependability and is a favorite of both professional craftsmen and ambitious DIYers alike. Over 50 million Arrow T50 Heavy Duty Staple Gun units have been sold since the 1950s, making it one of the best-selling staple guns of all time. Constructed of steel that has been hardened within a 1,500 degree furnace, this staple gun can withstand the most difficult craftwork. It features an attractive all-chrome steel body, a mighty coil spring, jam-resistant mechanisms, and a convenient staple-viewing window that makes it easy to tell when it’s time to reload. The Arrow T50 Heavy Duty Staple Gun is ideal for professional and general repairs, insulation installation, light trim, upholstery, and more. Ideal For: General Repairs, Professional Uses, Upholstery, Insulation, Light Trim. Uses genuine T50 staples.