Review on 🔩 Amana Tool Adjustable Carbide Countersink Bit by Harley Franchetti

I was hesitant to buy these based on some other reviews. But I went ahead and bought it anyway. The very first time I used it, in practice it was a piece of MDF and the bait squeezed the wood into a round ring around the hole. So obviously don't use this on MDF at all. On my second attempt to use it on plywood it worked and when I went to clean the drill bit I noticed that the round piece had stopped spinning, it seemed stuck even though I had only drilled two holes. Unable to solve. So I pulled out the brass part and used it without it.