1911 Frame build question
I am working on my first 1911a1 build. Have a 80% frame - needs slide rails cut. Plan on doing this using my drill press w/cross wise slideing vise.
Question is this: what size keyway cutter do I use, and what is the depth.
I have the blueprints, so I think I have the answers but would like to know I am right before I ruin a good frame. Also, looks like the slide rail cut is .119 +.002; so a .120 cutter should work - a 1/8 (.125) I suspect is too big. Problem is I am having trouble finding a .120 cutter. Any help appreciated by this novice.
Lastly, KT Ordnance makes a slide rail jig:http://www.kristitool.com/kto/products.php#slide
Does anyone have an opinion on this jig?