Review on Quick-Release Nut Bolt Remover Set: 11pcs Stud Extractor Locking Socket Kit (9-19mm) by Herthoel Yanda

I thought it would be useful. I have a round brake bleeder that needs to be unscrewed and replaced. It is located in the aluminum cylinder of the brake mast and cannot be removed with a vise. Needless to say, it's rounded. When I got this I tried and tried and tried to remove the exhaust valve (10mm) to no avail. It begins to bite and then begins turning sideways, breaking the bite it created. With a good product, it should be an easy task. Twisting inside began to bend the metal of this product. I personally don't think this product is of good quality due to the steel it is made of, harder steel would be better. Or when I pulled a bolt out of a tree. It may please others, but not me and the mechanics I use it for.