I was really hoping this would work as I'm a fan of the Amana tool but I was disappointed. Firstly the thing sinks into wood like butter so it's not a problem but the sink stop sucks like a lot of things, it worked fine for the first week but then kinda didn't when I use my fingers to prevent it from sinking rotates, works, but I think it should work by itself. Today I will try to remove the emphasis and update this review. PS: Be careful when adjusting the drill bit when tightening it. I broke 2 by pressing the nut too tight. Edit: Well I removed the stop and it works great but I would just buy a regular washer attachment.