Check the listing for details. Tyrolit CA40-B Ceramic Cerabond 4 -1/2 X 7/8 29A Flap Disc 5ct. Condition: New. Listed at 65.99 USD. Flap disc CERABOND flap disc for stainless steel. TYROLIT has now extended the CERABOND family to include the new CERAMIC flap discs. A unique bond system combined with a high-performance PREMIUM cloth offers the operator greater abrasiveness. This flap disc is particularly suitable for stainless steels and demanding grinding applications. In addition, the unique bond system prevents premature grain break-out and leads to a long product lifetime. The additional TOP SIZE coating ensures cooler grinding, allowing a longer lifetime and reducing discoloration on the workpiece surface. UPC of Individual Unit: 8-84255-02323-2