Professional backing pad for commercial or occasional use M14 115mm plastic backing pad Suitable for all M14 / 4-1/2" angle grinders Suitable for use with most angle grinders Maximum speed 13330 RPM M14 thread to fit angle grinders and sanders / polishers Supplied with M14 x 2 locking nut Plastic pad for strength and durability Suitable for use with fibre discs it keeps the fibre discs solid to stop them from bending and being hard to use