I've tried these bits on plywood and the results have been great. No tears anymore. Unfortunately, they couldn't cut through hardwood well without trimming the edges. I used 3/4" white oak to make the box joints and pulled them out horribly. I then used the same bits on 1/2" plywood and seemed to get smooth edges. I gave 5 stars because I bought them for my plywood problems. For hardwood I only use good quality straight bits.