"ProSet" Sorrells Tool - Bevel Grinding JigThe ProSet Sorrells tool is the next generation of grinding jigs. Machined from solid aluminum for a light weight and corrosion resistant tool to ensure perfectly even bevels from side to side. This bevel grinding tool includes 1 4x20 threaded holes for those that prefer to bolt their knife rather than clamping it to the jig, and three different slots for a file guide to slide into to, to accomodate knives as small as a folder to anything as big as a