@CityDecks...wow if your using the Dewalt dvf899 ,3 speed impact wrench..and it's getting hot driving tapcons ,never heard of that.
We use the dewalt sds max drill to drill 9" x 1/2" holes 90-120..then
We drive 1/2" x 8" Titan bolts into concrete foundations about 90-120 per house , with the 899 impact wrench...gets warm but never hot, it's about 2 years old.....we use it for many applications...like driving 8-10" truss locks ,flat locks, into quad or 6x ply Engineered lumber...no problems so far...
Maybe where you are ,is extremely hott?