This is my third fitting of a knife handle. This is a pre-hardened and drilled blade from a major supplier. I think this one is called "Mule Skinner." My question is: How do I fit this handle to the blade without removing the gray finish on the top and bottom of the tang? I have to do the final grinding and sanding of the wood while it is in the final fit stage because of the Corby bolts. It seems that I will end up with a mirror polished tang on a gray finish knife, or I have to somehow put the gray finish back on the tang after I fit the handle. What is a good solution to this problem? I am sure that you artists who have built thousands of knives have had this problem and know the best solution.