Review on 🛠️ Irwin Tools 42936 4 Inch Extension: Versatile and Reliable Tool for Enhanced Reach by Daniel Mandal

Works great after deburring. Like the others I couldn't even get a piece in and once I got it in it took a vise and a hammer to get it out. In my case, the burrs were inside on the opposite side of the threaded holes; They didn't stop tapping until they hit another wall, damaging the rather large hole in the bit shank. 30 seconds. I also have a good disc sander so I flattened my attachment a bit so the screws can't turn it since I had a round shaft attachment. All changes took less time than repairing. It is excellent. I'd rather save $10 than buy one that someone bothered to look at after it was made. :)