Amazon.com: Benchmark Abrasives 4-1/2" Aluminum Oxide Depressed Center Thin Cut Off Wheel .040" Thick 7/8"Arbor, Metal Cutting Grinding Wheel, Angle Grinding Cutting Wheel - 50 Pack : Industrial & Scientific
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PFERD 61312 1/8" Type 27 Aluminum Oxide Cut-off Wheel | Threaded Arbor Hole | 4-1/2" Diameter (Sold by Box of 10) - International Air Tool & Industrial Supply Company