Quickly learn how to drill the sea and hammer pin holes for your 80% 1911 project.
Keep the jig on like you did for the slide cutting and barrel seating. You’ll just remove it from the vise and lay it flat. Remember to bubble level it and clamp it down! Disclaimer again.
Choose whichever bit size first. Here I went with the 4mm hammer pin hole. I’m going to drill just through one side.
TOO EASY after what you’ve been through. Now finish up the other three holes.
Part 1: Intro (Finding the 80%)
Part 5: Cutting the Slide Rail
Part 7: Hammer & Sear Pin Holes
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Thanks for documenting all of this! It has been a great help as I do mine. I have a question about the sear and hammer holes and pins. I drilled the holes and they work great as far as the pins going through. The pins have a lip on them, should that lip be flush with the frame, or does the lip sit on the frame? Thanks!
Thanks for your question! The lips should sit flush on the side where you have the thumb safety. That way the pins won't fall out. I actually had the pins going in the wrong way until my smith told me if should go in the other way. I ended up using the rounded bit from the burr set used in the installation of the plunger tube to make the pins sit flush.