Ball bearing cap for WOWStick 1F

Ball bearing cap for WOWStick 1F
designed for usage with 1 608 ball bearing
 

Found it unpleasant when I had to screw in the last mm of a screw by hand.
With this cap there is no sharp edge any more and super easy due to the ball bearing.

Its a little bit thick but this is due to the 608 (only one I have lying around).
If you want to use a smaller ball bearing feel free to change it, Fusion360 file is attached.

Print instructions:
both parts need supports 
inner parts can be printed on the tip to get nicer surface at the slope.