Hey all, Sooooo, I decided to make some new fret files. Thought I would take pictures and stuff for some of the new guys. Am I an expert on the subject? Nope. But I'm going to do it anywho! I like fret crowning files for some silly reason. I have purchased several from different luthier suppliers but I have had trouble finding exactly what I wanted. Size, shape, handle, handle angle, straightness of the file, temper of the file, cost. I have had trouble with all of these. Having gotten burned with my last purchase from a certain UK luthier supply that left me a certain shade of red, I decided to make the files I wanted and thought I would send a set to a buddy as well. So, what is the difference between a "luthiers" fret crowning file and a regular, three corner file? Not much. The main difference is someone rounded over the sharp corners of the file so the fretboard doesn't get damaged as you use the file. This rounding over has to be done by hand so that is why luthier files usually cost so much. I purchased two 6" Nicholson #21866N three corner files from Home Depot and two Mercer 8" cantsaw files from Highland Woodworking. I like the size of the Nicholson files for easy handling and overall use. It also works good for rounding fret ends. The cantsaw file, though big and seemingly unwieldy, really work fast to put a crown on a fret. Work slow and check often with this one but you can get a fretboard done in no time. First thing I did was attack the edges with my little 1 x 30" belt sander and an 80 grit belt. I should have used the grinding wheel first to get rid of all the tiny file teeth as I ended up standing there a long time doing pass after pass after pass. . . But anyways, the belt sander worked great ultimately. I went over the ends as well. After the belt sander, I grabbed some 120 grit and 320 grit and a sanding block to go over the edges. I spotted a couple of spots where the teeth remained and marked them with a Sharpie. Then I went back to the mini belt sander to DEAL WITH THEM! After that, I changed the abrasive belt to a 600 grit belt and went over the edges again. I very carefully softened the transition from the now rounded corners into the files cutting teeth. To do this you have to hold the files cutting face at a very slight angle to the belt. Using the higher grit belt let me miss a couple times and not ruin the cutting surface. I checked all the file edges by running them over the edge of the wood block to see if they cut at all. They were all good but I used a little more sandpaper to take down the transition areas some more. More coming.