The DC3 sharpening stone features one side with fine diamond (25 micron) and one ceramic stone made of synthetic sapphire (dark gray) (1 micron).

These very hard stones are suitable for renewing powder metallurgy steels.

No lubrication is required for their use; however, you can periodically wash them with water and liquid soap.

The dimensions of the white stone are: 25 mm x 75 mm.

Includes a leather case.