Suited for tough EDGE grinding applications, Tiger Paw™ 100% zirconium flap discs feature multiple layers of coated abrasive material that expose sharp, fresh grains as they wear away. Poly cotton backing prevents premature grain shedding on aggressive applications, further increasing productivity. Phenolic back Tiger Paw is available in 4 and a half, 5, and 7 in. sizes with or without 5/8 in.-11 nut in both Type 29 and 27 standard and Type 27 super high density (4 and a half and 7 in. only) configurations.