I received this drill bit but haven't had a chance to use it yet, but it looks very well made and is very durable to do what I need it to do. Unfortunately, the description states that the 1/4" quick change shank reduces slippage in standard drill chucks and is compatible with all 1/4" quick change chucks, including impact drills, which is not true. Mine has a 3/8" hex shank. I've bought 2-6" 1/4" extensions for it, but they're useless. I had to order an extra extension for the 3/8" hex shank.