My biggest problem is to make the first cut on a piece of leather that I am going to use for belts. I have a roller knife, it is good for 3.5 to 4 oz leather nothing past that. I have to cut on the floor with a straight edge. As Joe59 said, I have a problem cutting with a razor, I usually under cut. I am not sure what a draw gauge is, I will look it up. Thank you Joe59. I do have Al's book, Leather tools.