I generally use Olson #64502, Universal #5R, Width .038", Thickness .016", 13/7TPI
Blade. The blade has a few reverse teeth at the bottom. Sometimes I use a # 3R for tighter work or a blade with slightly larger teeth with no reverse teeth for thicker/harder wood. With fretwork on 1/2 inch maple these blades don't seem to be working so well. I just ordered the Flying Dutchman assortment from Mike. Any suggestions?