How Do You Sharpen Combo Blades?

You need a 60616 Gatco Sharpener!!

This great product will sharpen a lot more than just combo blades (and straight blades as well). This triangular-shaped, portable ceramic sharpener will sharpen fish hooks, darts, ice picks, scribes, awls and other pointed instruments.

Here it is a a great price:

Gatco Sharpeners 60616