I needed the mortiser for something and decided the chisel in it (1/4") was fine. Then I looked closely and noticed burrs on the outer points of the chisel, but no burn or other indication of abuse. Being in a rush (lazy?) and only needing to cut about 50" of mortise I used it anyway, and it cut fine. But I'm going to pull it out and sharpen/hone the chisel. Anyone seen this? Does this happen from any hardwood or must I have hit something and not noticed it? I had been cutting a lot of Black walnut and White oak. It is a good quality Japanese chisel either Lee valley or Powermatic (they look identical).