C-Prime Plus Offers Improvement In Abrasive Grain Manufacturing Technology That Results In A Much Finer Crystalized Structure. The Unique Mineral Structure Provides Quick Change Discs With Longer Life And More Aggressive Grains In Addition To Improved Self-Sharpening Features Compared To Traditional Ceramic Products. New Ceramic Grin Improvements Include A Higher Metal Removal Rate At Faster Cutting Speeds With A Low Grinding Temperature And Less Friction. Turn-On Fastening System.