The COMBICLICK® system consists of a specially developed backing pad and a rugged mounting system at the back of the disc. The backing pad allows COMBICLICK® discs to be used on most available angle grinders. The special geometry of the cooling slots ensures high air throughput, which considerably reduces the thermal load on the abrasive material and the workpiece. The quick-mounting system, rugged fixture, secure attachment of the disc and optimized cooling system help to provide up to 30% lower workpiece temperature, up to 25% increased stock removal, up to 30% longer disc life and improved utilization of the abrasive. PFERD fiber discs are manufactured in accordance with ISO 16057 in shape A1 version F under the designation "vulcanized fiber disc". For universal grinding work on components made from aluminum, copper, bronze, titanium and fiber-reinforced plastics. Excellent for use on titanium alloys. Ideal for the aeronautical industry, especially where SiC is the only approved abrasive, e.g. for use on engine components.