Version 2.1.3.130

Stone Tools can only be used to create casts, but no tools [default: true]
B:disableStoneTools=true

I have tried setting it to false also (just in case it was backwards), which had no effect. I am still able to make a tinker tool with stone parts. I never see the red text telling me the stone parts are only for casting.

Then it's either not true on the server you're using, or you got errors in your log.

Never mind, I guess I should have tested it alone. Setting works fine when its just Tinkers and Tinkers Tweaks. I guess its either Jaded's configs or one of the other mods in the Magic Farm 3 pack that causes the issue.