DEWALT 14.4-volt 1/2-in Drill (Charger Included) at Lowes.com
Replacement Spare Parts DC Motor 7.2V 9.6V 10.8V 12V 14.4V 16.8V 18V 21V for Makita for Dewalt for Bosch for Milwaukee Electric Drill Screwdriver - (Type: 18V 12 Tooth) - - Amazon.com
Traxxas Summit Dewalt 14.4V motor upgrade/conversion (NL) - YouTube