Hello all, I have been slowly making my first knife from an old file. I have the design cut out and am in the process of thinning the entire piece. It started life as a 5/32" file, I would like to get the blade and handle thickness down to 1/8th. I am lacking lots of nice power tools and have been spending a long time with a large flat file in my vice and taking material of of each side slowly and steadily. When I am ready to put a grind on it, should I try to use the file or my harbor freight 1x30" belt sander? I feel I can get more control with my file than my grinder. Opinions would be most helpful.