Quote Originally Posted by Mike Blue View Post
+1, drill the holes while the scale material is flat and square. Drill both holes at the same time if you can. I like the idea of clamping both scales together to do this. Make sure your drill press is also squared up. Since most common ordinary drill bits make a triangular hole, drill slightly undersized and ream the hole to round at the correct size for the pin stock. Then there is no wobbly hole.
I don't have much scale making experience at all to speak of, but this is what I did. I used a spray adhesive to hold both sets together, and drilled it precisely as you said with very good results. I was actually shocked that my first razor was perfectly centered.