Grinding Wheel - 250 x 25 x 31.75 A46 HARDV (GW05)

Offhand bench/pedestal grinding wheel. 250x25x31.75mm (10"x1? x1 ? ) Type 1 straight. COARSE GRIT A46 (HARDV). Regular blue aluminium oxide. Very tough form of aluminium oxide abrasive. Can be blue or brown in colour.