This milling cutter was a waste of money. The first time I used it I set the depth to 1/4" and used it on Red Cedar. This burned the wood and made it very difficult to move the router while I was routing. It seemed very tedious. I adjusted the depth to cut less deep and it still burned and still had trouble cutting.The 90 degree side behaved the same but didn't burn it just seemed very weak quality bit should go.