So how is it a tool issue when it's not the took that failed? It fit tight in to the head of the screw.
Yeah, I get you. I resisted buying good tools kind of because I was thinking the same. The issue is if the bit is cut a hair small, and then the corners get rounded just a bit - then (with screws as small as we use) you don't have to push much steel for the bit to slip. Here is a test. Get your tools, find a 'new' screw, test fit, and how much play does it have? More play = easier to strip. My MIP tools, if the screw has been used before, they almost won't go in the hole, because they fit so tight. My old Turnigy bits showed wear, but often slipped. I could put my MIP in that same screw, and it could come right out.
Steering and driveline - what issues did you have? maybe we can help you work them out.