CS/12 - Frog Fixer aka "Needlepointer"
This is such a specialized tool! The end slips over a pin on a pin holder and allows you to straighten the pin should it ever become bent. The end piece can be unscrewed and put on in the other direction giving you a point that is small enough to get in-between the pin and clean out anything that might be stuck there. How cool is that!
Case of 12