101G-2M Medium Wire Wheel, 8" Dia., 0.014" Fill, 1/2" - 2" ArborJET's high performance crimped wire wheels brushes have set the standard in Canada as the best performing bench wire wheels for metal applications Heavy wire fill and the highest grade piano wire (tempered high carbon steel, wire) have earned JET brushes an enviable reputation for consistent quality and life All 8 in wire wheels come with a 2 in arbor hole bushed from 1 2 in to 5 8 in sizes to fit all brands of bench grinders Please specify arbor size