This center cap is 1mm longer than the original closing the gap between itself and the body. It has additional locking lugs that in combination with an o-ring placed in the newly designed channel will seal the bit storage, provide much tighter more satisfying locking motion with slightly less rotation needed, and greatly improve the rigidity of the bit storage.

I printed in petg .4mm nozzle at a .12mm layer height. I'm not sure if different layer heights will have negative effects on the lugs and they need to be very precisely printed to fit correctly. Printing logo side up with tree supports, takes slight cleanup on underside from remnants of supports.

The o-ring i used was 20mm od x 2.4mm cs, the part was made specifically to be used with an o-ring to seat itself in a locked position. I highly recommend using one, the new lugs will not seat in the locked position as well without the pressure of the o-ring being squished.