I want to give a warning about steel made in China. We all know they make cheap stuff that came make pricing attractive. When it comes to striking tools like hammers, splitting mauls and wedges stay away from them. The energy created when using these tools can break off shards of the tool that fly off at high speeds. Getting hit with a piece of a hammer can cause severe injuries or death. Unfortunately this happens frequently.
The same is true for old cold chisels with mushroomed heads. Pieces will fly off and strike you or someone near by. It’s no different then shrapnel. If you have tools with mushroomed heads grind them back to the proper shape or throw them away where no one can find them.