Boride soft roughing stone RO-GS, roughing stone series with larger size selections. Stones with coarse grit for fast stock removal.
Roughing Stone sorted by the softest to hardest series.
RO-GS -> RO-MED -> ROUGH OUT -> RO-HARD
*Boride polishing stone can be sold individually or by box (look up pcs/box). Save more by purchasing in box quantity.