Description Features: When used with 3M Cubitron II discs, these pads offer improved disc life and cut rate for lower cost and higher throughput unique rib pattern Resistant to temperatures over 100°C The 3M Ribbed Back Up pad has a unique rib pattern and is resistant to temperatures over 100°C Suitable For: High Pressure Fibre Discs Specifications: Type: Back-Up Material: Polyamide Diameter: 180mm Thread Size: M14 Maximum Speed: 8500 rpm Colour: Red Quantity: 1