The CC-GRIND clamping flange set optimally aligns the CC-GRIND-SOLID and CC-GRIND-FLEX in the angle grinder protective guard. This means that the grinding discs can be positioned so that they are particularly flat against the workpiece, therefore maximising efficiency. The black backing pad is placed on the original mounting flange of the angle grinder. The silver flange nut replaces the original flange nut.