This backing pad allows COMBICLICK® products to be used on commercially available angle grinders. 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 airflow, 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. Hardness CC-S-GT (soft) = grey