As with all CMT products, the quality of this bit is high. The only issue I had was that it was a bit long for use in the Porter Cable 690 router. To make the shallow cut I needed, I had to make a 1/4" spacer to place between the router and the removable base plate (I had to cut a 1/8" deep groove to accommodate the brass knife hinge fit). If it wasn't for that I would have given 5 stars.