Remix 4WD key ring.

This is a remix of the original 4WD Key Ring model.
by Bootjevaarder
The models have been slightly modified to make the use of brackets unnecessary:
Parts A and E: Upper output shaft area.
Parts C and D: Chamfers to avoid flat shaft wall.
Parts B: Lengthened center shaft area to 15.5 to allow it to roll freely.

The STL models are from the creator, only modification to better print the model.