Reply by Donna Menke

I read about cutting a fine toothed but wide blade to a good length, fastening down the ends flat to a board, and using the blade to cut sandpaper. Jut slip the paper under the blade and pull up sharply. Sounded like a good idea, but I’ve never done it. I always have broken blades around, but the 1/8” blades are useless for much of anything. The bigger blades I use are too coarse for that job.

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