ITEM: 60 Grit Aluminum Oxide Type 1 Internal Grinding Wheel NORTON. MANUFACTURER: NORTON. BRAND: Norton. MANUFACTURER PART: 66243530126. 60 Grit Aluminum Oxide Type 1 Internal Grinding Wheel 4 Diam x 1/2 Hole x 1 Thick, 6,210 Max RPM, Medium Grade, M Hardness, Vitrified Bond, No Recess (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Grinding & Cutoff. Grinding & Cutoff Wheels. Internal Grinding Wheels. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: NortonGrinding & CutoffGrinding & Cutoff WheelsInternal Grinding WheelsN/A.