Mfg. Part No.: T50 Brand: Arrow Fastener Heavy steel construction, chrome finish, precision engineered. Drives staples flush to surface. Wedge-pointed staples spread to lock themselves in wood. Loads 85 model No. T-50 staples of .050″ wire. No. T50: Type: Heavy-Duty, Staple Size: 1/4 In. to 9/16 In., Brad Size: N/A, Pkg Qty: 1, Package Type: Clamshell.