documenting the many uses for the common pocket knife
About a month back I was reviewing a 1989ish Jeep for purchase with the intention of refurbishing it for heavy off-road duty in Maine. One of the problems older Jeeps like this and almost all aging cars have is rust. I used my pocket knife to inspect the number and thickness of the layers of rust on one of the hinges.
This helped me determine how much solid metal was left and the appropriate repair strategy (leave or replace). In this case my pocketknife was used as a gentle probe and nothing more.
I ended up passing on the Jeep … for now.