The Pearl REDLINE™ Trimmable Ceramic Maxidisc features a fine crystalline Ceramic Aluminum Oxide Abrasive grain. This CBT or Ceramic Bond Technology allows micro-fracturing of the abrasive grains, which constantly creates new cutting edges in the grain as it grinds. The PearlREDLINE™ Trimmable Flap Disc has a longer life and remains sharp for the duration of its life. This premium flap discs features pearls Quickmount™ threaded hub for fast and easy disc changes. Pearl REDLINE™ Trimmable MaxiDiscs have faster stock removal and longer life compared to both Aluminum Oxide and Zirconia Flap Discs. Call Panther Industrial today to try these top of the line Pearl Redline™ Maxidiscs!