HF roller cabinet longevity

What brand did you sell. I am just retired from 28 years with Mac. My Mac boxes from 1973 are still loaded and working great. I have a MB1350 Mac that has been overloaded and has ridden around in my tool truck for 7 years. Still doing good.

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I was a Mac dealer from 1984 to 1993 and have a MB9100 and MB9200 IIRC.
I was a Snap On / Sun tech rep from 1993 to 1999.