Battery Pack replacement

As it happens for many other guys, when i moved from home I had to get some power tools.
Quick solution was cheap kit with drill, sander and jigsaw for around 50$. Tools its self are actually ok, still working after more than 10 years.
Wish I could say the same about Ni-MH/Ni-Cd batteries (we all know that)

During the time I've got a bunch of Black&Decker 18v(20V) Lithium batteries and dicided to use them for power those tools.

Getting power from batteries was easy, i've found the mount https://www.thingiverse.com/thing:2390620 which suits me perfectly.
The only problem was - I had to print 4 of them and glue to every tool. Or to make an adapter to fit between battery mount and power tools.

So i did.

My power tools are from Tool Mann, but for sure can fit many other cheap brands.

p.s. I've lost original batteries, that's why I couldn't use it as adapter :)