3M Cubitron II coated 967A Type 29 flap disc uses ceramic aluminum oxide as the abrasive material and has a diameter of 4 1/2 in. 3M incorporates this ceramic aluminum oxide 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 3M flap disc can be run at a maximum speed of 13300 RPMs.

• Abrasive Type: Coated
• Flap Disc Type: Type 29
• Disc Diameter: 4 1/2 in
• Abrasive Material: Ceramic Aluminum Oxide
• Series ID: 967A
• Grade: Coarse
• Grit: 40+
• Center Hole Thread Size: 5/8-11 in
• Flap Backing Material: Poly-Cotton
• Flap Backing Weight: Y
• Maximum RPM: 13300