PFERD Combiclick fiber discs feature a totally new quick-change system for faster changing and cooler grinding. Discs just click into place and give faster, cooler grinding with engineered airflow backing pads. They provide 75 percent faster change-up time, more flexibilty allows grinding on curved surfaces, 25 percent more stock removal and 30 percent longer tool life. A recessed mounting nut prevents scratching. For more information visit www.pferdusa.com or call (508) 668-6096.