Dewalt motor brush lifespan

My dewalt suddenly stopped working today after about 3 months of use and probably around 100 hours of running. I checked the brushes and they are shot. Only about 1/4 inch left on them. Is this the typical life span?

I normally run pine and 4,000 mm per minute at a 4 speed on the dial.

Can’t say from personal experience, but I’ve heard a few people say around 100 hours.

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Most say do not run it higher than 1 on the dial and 100 hours isn’t uncommon. However if you slow it down they will last longer for sure.


Ok great. At least they at least they are easy and cheap to replace

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