Cylinder and Slide TIN Pin Set. Trigger Jobs Last Longer with TIN. This Titanium Nitrite (TIN) coated hammer and sear pin give you the smoothest hammer and sear rotation possible while eliminating pin wear. The elimination of pin wear helps keep that crisp trigger pull that you paid for. The oversize TIN Pin Set may require reaming of some part pivot holes. Fits Kimber, Springfield, 1911, STI, SV, and Para. Tin Pin Set, Oversized.