Worked great for a few days until the drill bit halved at the ball bearing point (weak point of the drill bit) when making a flat cut (approx. 1/4 inch ) from African redwood. I was expecting better quality at this price point and was very disappointed with the product, it should have been good in relatively soft woods like mahogany and I'm glad I found this issue before I tried it on harder woods like maple or tried oak. I'm hoping to find a better brand with a 1/4" bit to use with my smaller routing jigs. The only reason I gave this bit two stars instead of one is because in the few days it's worked it cuts cleaner than any of my other attachments.