Cutter is easily sharpened by removing it and sliding it onto a snug 5/8” diameter slotted arbor and slowly turning the arbor by hand while lightly touching it against a running abrasive belt, disk, wheel, or rubberized abrasive wheel. This simple process takes only a few seconds, and generates a precise cutting edge bevel that can be honed to razor sharpness many times during use, before re-grinding will be needed. If no machines are available, hand shaping the bevel with a coarse pocket stone is slower, but just as effective.