3M - 40 Grit, 4-1/2" Disc Diam, 7/8 Center Hole, Type 29 Zirconia Alumina Flap Disc - Cloth Backing, Arbor Attaching System, Coated

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Item #: 79110136Brand: 3M Model #: 00051115288760Exact Tooling IR#: 04 Features and Benefits Coated abrasives can be used for most applications, from grinding to polishing. They co nsist of a thin layer of abrasive adhered to fiber, paper, cloth or rubber. Coated discs are normally used on angle grinders. Type 29 flap discs are more aggressive and the angled face provides larger surface contact for higher stock removal. More durable than aluminum oxide, zirconia-alumina is best for medium- to heavy-material removal. The material grains constantly fracture to produce new sharp edges. Commonly used on carbon steels, aerospace alloys, nickel alloys, aluminum, cast iron, forgings and some stainless steels Arbors require adapting nuts. They eliminates cross threading. Product Specifications Abrasive Type Coated Flap Disc Type Type 29 Disc Diameter (Inch) 4-1/2 Abrasive Material Zirconia Alumina Grade Coarse Grit 40 Attaching System Arbor Center Hole Size 7/8 Backing Material Cloth Series 546D Show more