Spyderco's Ceramic File set includes four ceramic files: round, square, triangular and slip (teardrop). All four stones are fine-grit, ready for deburring hardened molds, even carbide. Clean with a plastic souring pad and powdered abrasive cleanser. Includes leather case.
Specifications:

Type	Sharpening System
Open Length	5"
Sheath	Suede
Handle Description	N/A
Sharpener Material	Ceramic
Sharpener Type	Fine
Closed Length
	5"
	Ceramic
	Fine Grit