Stanley SharpShooter Heavy-Duty Narrow Crown Staple, 1/2 In.

For heavy-duty stapling jobs such as insulation, carpet underlayment, and roofing felt. For use in Stanley model No. TRA60, TR85, TR100, TR150, TR150HL, TR250H, TRE550, TRE200, TRE500, and PHT150, Arrow model No. T-50, T-55, T-55C, ET-50, ETC-50, ETF-50, ETN-50, and HT-50A.