Flap Disc; Type Flat; Diameter 4-1/2 Inch; Arbor Hole Size 7/8 Inch; Grit Size Number 40; Grit Extra Coarse; Abrasive Material Premium Ceramic Alumina; Backing Material Y-Weight Polyester; Speed Rating 13300 RPM; Application Beveling, Blending, Deburring, Stock Removal, Home Improvement, Paint and Drywall, Collision Repair, Medical Industry, Transportation, Energy and Environment; Cut Material 300/400 Series Stainless Steel, Super Alloys, Cobalt, Chrome, Inconel, Titanium

Type 27 Flat Flap Disc with Latest-Generation Ceramic Alumina Abrasive Grain Lasts 50% - 200% Longer than any Flap Discs on Stainless Steel, Cobalt, Chrome Inconel, Titanium and Other Hard-To-Grind Materials; Quick Trim Flexible Plastic Backing Plate Offers Some Additional Conformability and Sets the Industry Standard for Trimmability; Y-Weight Polyester Flaps with a Supersize Grinding Aid to Significantly Improve Life, Grain Retention and Fray Resistance While Providing a Cool, Noticeably Fast Cut Rate; The Best choice for Coarse Grit Blending, Deburring and Stock Removal