Problem with DeWalt drill

[Randy C]

I have a DeWalt 20 volt drill that’s about 10 years old. Lately I have noticed that it sometimes will lose power (even when not under a load) and will hesitate and then it will catch back up and run full speed. Does anyone know if this could possibly be a problem with brushes and if so is this something that I could replace?

Thanks

[Woodenfish]

To me it sounds more like a switch problem. If you take it apart, give the switch a shot or two of compressed air and see if that helps.