Great stuff. I'm building a stone faced fire pit and using it to break and shape rocks. I bought this with 2 other bits and it is by far the best. It works really well and I think it's mainly because of the hand protection. You don't understand how you can subconsciously reduce the blow of the hammer because your hand is in close proximity to the hammer. With a protective cover, the risk of hitting your hand is reduced and the blows will therefore be much stronger. I am very happy with this purchase!