Well, as they say. "You get what you pay for". They were very cheap compared to the American versions and it shows. The very first use I had with one, it first dropped the tip onto the concrete floor from a very short distance, about 3 feet, blunting the tip significantly. They are not very hardened and dull much faster than, for example, the more expensive American version. However, they cost about 1/5 the price, so like I said, before you pay less, you get less. As long as you don't drop them and hit them about 1/4 weaker than if you hit them in the middle they will probably last years, maybe 3 at most if you use them carefully, enough to keep track of what was visible. for your midstroke. This assumes you're using them on a metal like steel. If you use them on softer objects like wood they last a lot longer but I still wouldn't hit them very hard. If you intend to use them every day, all day long, don't skimp and buy American made ones to be sure they're properly tempered. The ends are really soft. Don't throw them upside down either, lol. Spirit.