Review on Highly Efficient Pneumatic Hammer Chisel with Hanperal Smoothing by Thong Lopez

Generally good pieces. I used them in a medium barrel hammer. I use it to remove stuck rotors, drums, hubs and replace wheel studs. Nothing too demanding. For larger jobs, I prefer to use a long-barreled .498 hammer (that's not what these bits are for). So far they've all held up great and felt like they got their money's worth. I didn't use the spring that came with the kit as I use a quick change. So I can't say anything about the durability of the spring. These bits lasted about a month in the store, I suspect they will for a long time to come. I will update if they fail soon. If I don't update, we'll assume they lasted a year or are still going on. Test date: ¹/³¹/²⁰²¹