Waynegburg--

Quote:
1.1. Car Key
Uses: Opening car; Starting car; Scrapper for flint;

Have you actually tried getting a spark from your ferrocerium rod with your car/house key? Prompted by another thread on this forum, I did some testing with mine. I got a poor spark. I'm guesing that was probably because the keys are essentially brass. While it would beat nothing, it was in no way comparable to what I could generate using a piece of hacksaw blade, or a knife.

Try using your specific combination, & see what results you get.

Of course, you probably will have a blade in the mini-tool you seek, so that may solve that problem.

David