This fixture is used for two operations, drilling holes and lowering the frame deck height. You need to drill your sear and hammer hole first to get your staring dimensions before filing. Once you have your starting dimensions you can then proceed to hand filing the deck height to its final dimension. We have 2 sizes options reg and Lg and both have sear and hammer locations on the side of the fixture. Both fixtures will accommodate Govt./Commander/Officer. Large fixture is for long cover frames and works on all size frames.
Drilling of Sear and Hammer hole:
Hand filing the deck height: