We see this question a lot. I know I asked when I was new. I am posting this hoping it will help someone new. I use Flying Dutchman 3/0 new spiral blades from Mikes Workshop. I use them for everything except 3/4" hardwood. The Air Force plaque was stack cut, three pieces of 1/4" maple plywood. Then I started cutting the cross out of 3/8" cedar and took the picture when the blade broke. Hope this helps.