If anyone have been breaking the 1/16th cutting bit using Steve Good key chain program which can be downloaded free at http://scrollsawworkshop.blogspot.com/. I found a temp solution. I use a board thickness of .250 and set my depth in designer at .230, and then sand the extra .020 off. At least is working for me. I have a grizzly 12" drum sander and I just run my board through it and let the key chains fall off in a coffee can. I have also sanded them with my orbit sander it work just as well.