Tiger Paw™ Coated Abrasive Flap Disc, 4-1/2 in dia, 60 Grit, 7/8 Arbor, 13000 rpm, Type 27Designed for aggressive performance on tough grinding applications High performance grain and special poly cotton cloth provide superior grain retention This combination gets the job done faster and reduces overall grinding and finishing costs Multiple layers of coated abrasive material expose sharp, fresh grains as they slowly wear away, and the 100% premium zirconium grain prevents premature grain shedding on aggressive applications resulting in