1. 100% diamond exposure on Diamond Electroplated Vanity Blades provides a faster and more aggressive cut. 2. professional diamond 5", 125mm disc, blade for cutting, grinding marble, 3.100% diamond exposure on Diamond Electroplated Vanity Blades provides a faster and more aggressive cut. 4.This blade is designed for aggressive and fast cutting, shaping and grinding stone 5.Electroplated Diamond Blades are very aggressive with long working life.