
I bought one of these over a month ago and use it daily at work, removing 20-300 hex bolts per day per shift. If you know what you're doing, this hex head will last a very long time. Other people who work with me at my job use professionally provided sockets and hex plugs, and they round out each 8 hour shift with 2-3 of a different brand. They may not know how to properly insert a screwdriver into a hex screw, but I use this 6-7 days a week and it still has a straight, hard pattern on the end of the hex. Hard enough to get the job done but not so brittle that it breaks.

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