These are never-been-used, Carborundum, 8X3/4X1 A46-O6-V30 Grinding Wheels.
The grit on this wheel is 46 (Coarse) and the Hardness is "O" (hard)
General Tool & Supply Company of Attleboro, Massachusetts, is one of the Nation's leading stocking, single-location Industrial Supply Stores. We specialize in Norton Abrasives, Mitutoyo, Starrett, and Brown&Sharpe precision tools, Kennedy and Gerstner tool boxes, LPS lubricants, cutting tools, hand tools, jewelry supplies, and much more. Please visit our E-Bay store to see all of our incredible specials. Here at General Tool, we stock like a huge catalog house, but are small enough to give you the attention you deserve. Try us at 1-800-322-0005 and you will find out why we are able to beat the "big boys" in the Industrial Supply business.