Sorry if this has been asked, I can't really scan through 83 pages, my google searches have not been successful: I had a wrench in my inventory and was very frustrated to set up a whole mission, rendevous in orbit and get everything into position only to realize I need the screwdriver, not the wrench, and then to realize it's not in my parts list so I guess I need to research it! How do I unlock the screwdriver in career mode? I cannot for the life of me find it in any of the research nodes. Thanks
EDIT Ok I had a brainwave to search "inventory" in the research window, since "screwdriver" wasn't proffering results, and discovered it in the Advanced Electrics node, 160 science required! Feels a bit far in the tree, but anyway.