Ilija, I have used the Craftsman belt sander, first link below, on three scales and the sander works pretty well if you are careful. As Vlad mentioned it will remove wood pretty quickly. I used 120 grit paper and now have 220. The unit uses 3X21 belts and runs at 394 to 820 ft./ min. I don't know what that is in RPM but it is pretty slow at the slowest speed. Since it has a three position handle I can run the sander upside down and lock the trigger and set the speed that I want and form the scales. I have thought about using it to grind blades but have not done so and am thinking that I may not because of the 3" belt which would be hard to do a blade that is near or less than 3". The flap wheels and Vlads sanding discs seem to be better.

Since them I have bought a Delta belt/disc sander, second link below, which is pretty cool. With this baby you can sand your scales vary nicely as it has a 1" belt and runs fairly slow and also do some minor work on your blades. You can get belts up to 330 grit. There is a pulley on the top of this unit that I have looked over and thought that maybe this may work to do some blade work haven't tried it yet. Bill Ellis actually has one of these. I call this unit my "Burr King" LOL.


http://www.sears.com/sr/javasr/produ...seBVCookie=Yes

http://www.deltamachinery.com/index.asp?e=136&p=835