I agree with the reviewers that said the cutter is duller than a hoe.  I bought this to replace the grommets in my boots that were causing my laces to fray. I marked this down because after many solid whacks I barely cut one new hole in my boot as the cutter was exceptionally dull. However, after I touched up the cutter on my diamond coated grinding wheel, it cut like a hot knife through butter and I finished the 11 other holes in less time that I did the first one.  If the company who makes the cutter only took a few seconds to sharpen the cutter against a grinding wheel this would be one exceptional kit.