[wdfifteen]

Last one is a Schrader tire valve tool. I have one.
The tap is to rethread the inside of the valve stem so the valve can be screwed in. The die is to rethread the outside of the valve stem so the cap can be screwed on. The forked end is to screw the valve into the valve stem and remove it. The pointy end is to remove broken valves. The tool is a holdover from the days the Schrader valve was all metal and rebuildable, as opposed to today’s disposable valves. I’ve never used mine for anything but removing and installing the valve.