Arrow Staple Gun Tacker. Uses 6 sizes of T50 Staples - 1/4, 5/16, 3/8, 1/2, 17/32, and 9/16 In. Durable chrome finish lasts for years and years. The T50 is the standard for staple guns around the world. This time proven tool can tackle any job from Do It Yourselfer to Professional over a wide range of stapling tasks. Built to last with made in the USA quality. Hand Tools > Fastening Tools > Staple Guns