Monk slayer at about $5 each I'm asking for the ones I'm selling it is probably as cheap or cheaper than a sharpening service would charge. Some of the cue makers I have sold them to have built a jig for there milling machines to allow them to sharpen these 3 wing slotcutters, but I've been told that it is real hard to get the perfect angle on the grind. It will not cut as good as a new factory sharpened blade or as long in most cases.--Leonard