Do you know if they are the thick ones, or the thin ones? The thick ones have a shank about 1/8", the thin about 1/16 or so. The thin ones seem to work better, they flex a little, which seems to help a bit. I have a set of the thick ones, and I purchased a couple of the thin ones to use with my Biax scraper (as stated earlier, they are not cheap). I was thinking about making a handle to use the thick ones as hand scrapers. I was planning on making a thin handle, so that it would flex, and allow the same type of action as the thin scraper blades. It would have to be made of a high carbon steel and hardened, otherwise it would just deform. I was thinking about 4140 PH, since it is readily available, and still machineable. Good luck.