M1911 Milling Guide Ghost Gunner, Inc.
1. Order Of Operations. a. The M1911 cutting programs use the following operations to complete an 80% 1911 frame: Slide rail milling operation using a slotting end mill, Barrel seat milling operation using a stub ball end mill, Sear pin hole drilling operation using a #34 drill, Hammer pin drilling operation using a custom carbide 5/32" drill.