I think it's ok. I cut some welds and they get the job done. I have never used this type of tool before and have tried various methods to separate old spot welds. I've seen people on auto restoration TV shows use something like this so I thought I'd give it a try. You have to be careful not to go too deep. And I suspect that soon one of them will break. Obviously these bits don't last forever so a few spare bits are included in the kit.
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