Gentlemen, I am thrilled with your Knife Edge bit. I used it to remove LOTS of screws from a spa I had in our basement. Over 20 years ago we bought this house with the intention of removing the very expensive spa. I tried in vain to get the screws out and just couldn’t. Recently I saw your knife edge bits online. It was beyond the answer to my dream tool. It is especially useful for screws buried deep in holes. It gripped the screws like nothing else I have ever used. A real “rescue tool” if I’ve ever seen one. Thank you for finally clearing our basement. My wife couldn’t believe it.
Steve L. – Homeowner