I wanted to pack the bearings on my rails from the back through the m3 holes but I had cut the tip to short on the white lithium I had. Figured I'd check printables to see if someone had already made an adapter for the squeeze tubes like the Lucas White Lithium comes in. Thankfully Justin Thursday had already done all the hard work here and had even uploaded a stp file, what a legend.
I only modified their version of the tip because the only thing that would work for my use was the threads to attach it to the bottle.
Print the cap from their post to be able to close the tube without taking this off.
The author remixed this model.
I just chopped off the tip and made it conical to fit in an m3 hole.