Quick-Change Sanding Disc, Abrasive Type Coated, Abrasive Material Aluminum Oxide, Backing Material Cloth, Backing Weight Y, Coating Coverage Closed, Grade Extra Coarse, Grit 36, Overall Diameter 3 in, Quick Change System TR, Series AO/Y, Maximum Operating Speed 20,000 RPM, Color Brown, Package Quantity 25 ARC Abrasives, Inc.(R) MAXBAK(TM) AO Series Type R locking fiber disc has a versatile premium aluminum oxide grain for metalworking. Y-weight backing. Durable fiber backing is flexible and resilient. This Quick-Lok disc changes quickly with no tooling and is easily mounted to NORTON Speed-Lok(TM) TR, Merit(R) Type 3 PowerLock(R), and 3M(TM) Roloc(TM) TR back-up pads. Plastic Type R fastener.
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