Not the best quality, and wear out very quickly

I have quite a bit (pun intended) of experience with other impact bits I purchased here on Amazon. I decided to try these for a change, hoping they will be of better quality, and last longer. But, it turns out the metal quality is not very good, and the torx bit edges wear out very quickly. I already went through 3 of these in 2 days of work, and all 3 lasted significantly less time than other brands I have used in the past.

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