Arrow HT50 HD Hammer TackerThe Arrow HT50 Heavy Duty Hammer Tacker is constructed with long lasting hardened steel working parts and a durable chrome finish. It is equipped with a specially designed power grip handle and a retractable striking edge. No need to worry about jamming with this heavy duty hammer tacker, as it comes with the Arrow patented jam proof mechanism. This model can use 3 sizes of the T50 staples: 8, 10, and 12mm. Power grip handle Patented jam proof