Used for pulling nerf flywheels that have been over pressed. 

(Unpopular opinion): I prefer to over press and then use this to work upwards and fine tune alignment especially with two stage setups, utilizing a very long hex key to really dial it in. 

Needs a 3m nut and screw

Tested with Daybreak and Kepler flywheels and works very well and clicks slightly in place.

Recommend using a lighter color filament as well as using the viewing to ensure the screw is against the shank instead of the plastic. I struggled with this before adding the windows. 

Print on its back “open slot up for layer strength” was great advice. 

Hope it works,  I did very little work on this so the real credit goes to Kellysparky and original designers.

-Ned