General description Faithfull Fibre Backed Sanding Discs are designed for use with angle grinders, featuring a durable construction that makes them suitable for a wide range of applications, particularly in metalworking and automotive repair. Technical specifications Diameter: 178mm Bore: 22mm Grit: 40G Pack Quantity: 25 Compatibility and accessories These sanding discs must be fitted with a suitable backing pad for use with angle grinders.