3M Standard Abrasives 645908 HP Type 29 A/Z Alumina Zirconia AZ Flap Disc - 4 1/2 in Diameter - 7/8 in Center Hole - 42892 66000126475

Standard Abrasives 645908 HP Type 29 flap disc uses A/Z alumina zirconia AZ as the abrasive material and has a diameter of 4 1/2 in. Standard Abrasives incorporates this A/Z alumina zirconia AZ material into the flap disc forming a grit of 40. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This Standard Abrasives flap disc can be run at a maximum speed of 13300 RPMs.