You need to get yourself a cheap Harbor Freight 1"x30" belt sander when they are on super sale & then also use the 20% off coupon. Mine was like $27 total a few years back. Then go to H-depot & get you some Diablo belts for it, $5 for a set of 3. Then it will take you just minutes to do all that to a knife, axe, machete, etc... . I'm just sayin'. I like to work smarter, not harder, now that i am almost 50. 