Cubitron II Silver Grinding Wheel, Depressed Center – Quick Change for Right Angle Grinder – 4.5” diam. x 1/4” Thick x 5/8-11” Thread – Type 27 – 87397 – Pack of 10: Amazon.com: Industrial & Scientific
3M™ Cubitron™ II Flexible Grinding Wheel 4" - Mass Technologies
3M™ Cubitron II Depressed Center Grinding Wheel | 3M Canada
3M 4" Green Corps Wheel - Glispro India Pvt Ltd
3M Green Corps Abrasive Flexible Grinding Wheel, Type 27, Ceramic Aluminum Oxide, 4-1/2" Diameter x 1/8" Thickness, 7/8" Arbor, Grit 36 (Case of 40): Bristle Discs: Amazon.com: Industrial & Scientific
3M™ Depressed Center Grinding Wheel, Aluminum Oxide, 4 in, 200 Wheels/Case | 3M Phillippines
3M™ Cubitron™ II Flexible Grinding Wheels, T27, 115 mm x 3 mm x 22.2 mm | 3M Egypt