Engineered for superior performance, the Z3® Zirconia Flap Discs from CGW Abrasives are designed to tackle heavy-duty applications with ease. Measuring 4-1/2 x 7/8 inches and featuring a grit of 36, these Type 29 discs are constructed with premium Zirconia Alumina grain on a robust poly/cotton backing, ensuring both durability and a fine finish. With 35% more material than standard flap discs, they offer exceptional stock removal rates, making them the fastest option available for steel applications. The active grinding aid allows for cool cutting with minimal pressure, making these discs ideal for aggressive use in welding and metalworking tasks. Each box contains 10 discs, providing ample supply for demanding projects.