I use a 6 tpi x.025 bi-metal blade for cutting out risers, resaw, and cutting out the sight window. I did notice the glass does dull it a lil bit. I have not cut limbs down with it, I was worried about the glass chipping or peeling on the bottom side of the cut. Am I ok to rough out limbs with one. Ive been grinding them down with belt sander and a 36 grit belt.