Cordless drill dimensions

[maddox10]

There are a few generic brands, reasonably cheap and ready for disambling.

And here you have an example of a custom version.
http://www.gimsonrobotics.com/GR02-1...gearmotor.html

[Coolspeedbot]

I already have a pair of 12 volt drill motors in mind I just want to know the approx. size to plan out how big the mounts need to be and how wide the robot needs to be to fit them.