[DonRotolo]

If you really want/need to know just how much thicknedd a particular anodizing process adds to your parts, Travis Covington had the absolute best solution: Just ask the guys who are going to do it. THEY KNOW.

Alternative: Make a test coupon (a sample with some holes, slots, flats and stuff) and have it anodized, and measure ofr yourself what the difference is.

In the real world, if your vendor doesn't know his process, you find another vendor. If that's impossible, then you run some tests and measure.

Don