ITEM: 4 Diam, 11/4 Hole Size, 11/2 Overall Thickness, 46 Grit, Type 11 Tool & Cutter Grinding Wheel NORTON. MANUFACTURER: NORTON. BRAND: Norton. MANUFACTURER PART: 66243503342. 4 Diam, 11/4 Hole Size, 11/2 Overall Thickness, 46 Grit, Type 11 Tool & Cutter Grinding Wheel Coarse Grade, Ceramic, K Hardness, Vitrified Bond, 5,730 RPM (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Grinding & Cutoff. Grinding & Cutoff Wheels. Tool & Cutter Grinding Wheels. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: NortonGrinding & CutoffGrinding & Cutoff WheelsTool & Cutter Grinding WheelsN/A.