Vitrified Diamond 8mm #3000 This particular stone is hard

This particular stone is hard and not as friable as other examples

and saturating the stone with water is suggested before use

Mikawa Nagura are formed from lithified volcanic ash

Useful for hand sanding hard or wear resistant steels

The light colour is desirable and the wholesale cost of the stone was increased as a result

Vitrified Diamond 8mm #3000 This particular stone is hardThe #3000 has been reformulated for greatly increased hardness and wear resistance. The diamond layer is 10mm thick after firing, then flat ground down to 8mm. It is mounted to an aluminium plate. It is recommended for users who are sharpening steels with a high volume of MC carbide. The stone is porous, and saturating the stone with water is suggested before use. Dimensions: 205 x 75 x 13mm