Metric Thread File
Why: Allows you to fix the threads on bolts, shafts, axles, crank ends, etc. that have been damaged. Each side of the file is a different thread pitch so one tool does them all.
TSM Technician: “Go a little easier on that hammer next time!”
Spouse/Parent Argument: This will keep me from having to replace EVERY bolt on the bike.
Cost: About $17 on Amazon
