I bought this cutter primarily for joining boxes made with a porter cord tool. Works better than the standard nozzle that came with the kit. Less tearing than a standard cutter and almost no burning on the inside of the joints. I have carved links for over 20 small boxes from a variety of native hardwoods and some exotic woods. There is still no noticeable loss of sharpness. Very happy with this lure and the rest of the Whiteside lures, they are the only brand I will be buying more.