Maxidisc™ EXV Zirconia High Density has 35% More Abrasive Material than the Standard EXV™ Maxidisc™ Pearl’s 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.