These are economical round nozzles, but they seem to be good. They are packaged separately in fairly flimsy containers but I can live with that. Their carbide blades may not be of the highest quality (or maybe they are - I really can't tell) but for the casual use they get from me there shouldn't be a problem. In terms of durability I gave them four stars purely based on my prediction that they will last a while. Unless they are intended for permanent use, I would recommend these bits.
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