This review is more about the company than the bit itself. I bought this bit to cut Dado and it made perfect clean cuts. Eventually I ran into some breakaway issues and contacted Whiteside. It was ultimately user error and the company was very helpful in teaching me proper usage (for those interested, mostly slower speeds (20k) and higher feeds). I can't say enough about the company - they stand behind their products 100% and do everything they can to support their customers. Thank you Gala!