4-1/2 x 5/8-11 – 60 Grit Green Back Zirconia Flap Disc
GreenbackÕs™ nylon Easy Trim backing allows you to shave off the green backing as the flaps wear down exposing more flap length. Reinforced with fiberglass, gives the Greenback™ flap disc more strength and durability than the competitions plastic back even under the most severe conditions. The best zirconia grains, on a special combination polyester/cotton flap, hold the grain more securely and resist clogging. Polyester/cotton flaps cushion the backing thus reducing vibration and noise. Exclusive outer coating, over the best premium Zirconia grains available, make the Pearl Abrasive Greenback™ Maxidisc™ flap disc run cooler and last longer as well as providing lubrication to prevent burn marks and discoloration of the finished material.