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PFERD 63333 Duodisc Combination Cutting/Grinding Wheel, Type 27, Aluminum Oxide A, 4-1/2" Diameter x 1/8" Thick, 7/8" Bore, 13300 Max RPM (Pack of 10)
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Pferd 61200 CC Grind Solid Steel Grinding Wheels, 4 1/2" x 7/8": Amazon.com: Industrial & Scientific
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PFERD 60056 Type 27 Grinding Wheel, 5 in Dia x 1/4 in THK, 7/8 in, 24 Grit, Ceramic Oxide Abrasive 10/Box | Action Industrial Supply
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