Pearl Abrasive MAX453ZJEH 4-1/2" X 5/8-11" Maxidisc - Flap Disc Zirconia Exv Type 27 High Density. Pearls EXV Zirconia Maxidisc is an ideal combination of performance and value. It is engineered with zirconia grains on a heavy duty coated abrasive cloth. The EXV Maxidisc is designed for grinding, blending and finishing on a wide range of metal and stainless steel applications.Medium to heavy stock removal on metalsBlending and intermediate finishing of metal surfacesWeld bead removalPaint removalBase preparation for steel frame structuresDeburring and corner removalGrinding, blending and finishing of stainless steelFor Metal and Stainless Steel