Mini Grinding Discs with Twist-to-Lock Backing – Green Zirconia 3″ 50 Grit. 25 pack.
Green Zirconia offers longer life and more aggressive results than Zirconia or Aluminum Oxide. These flexible discs resist chipping, snagging and cracking.
For use on air grinders and are compatible with all 3M style, Type “R” backing pads. Especially good on extra hard metals. 20,000 RPM.