Machines: Die grinder, small right angle grinder, air grinding tool, 1/4 inch drill Specification Diameter: 2 (50 mm) Fastener:Type R - Male Roll On Grit: 36 Max Operating Speed:25,000 RPM Material:Zirconia with Grinding Aid Use:Die Grinder, Power Drill, Air Grinder Tool Quantity:25 Discs Feature: 2 Zirconia Plus Quick Change Discs featuring Active Grinding Aid by Black Hawk Abrasives are designed for metal stock removal, blending, deburring, leveling, grinding, sealant... 25Pcs 2 Inch Zirconia with Grind Aid Quick Change Sanding DiscsSpecification:Grit: 36 GirtDiameter: 2 InchQuantity: 25 PackMaximum RPM: 25,000Attachment Type: TRWorks well on: Die Grinder, Power Drill, Air Grinder Tool. 2 36 Grit Kim-Kut™ Zirconia Grinding Disc - Bulk - Kimball Midwest 2 Inch Zirconia Sanding Discs NYXCL 40Pcs Mixup Quick Change Discs Set, With 1/4" Holder, For Die Grinder Surface Prep Strip Grind Polish Finish Burr Rust Paint Removal,Surface Conditioning Discs Sanding Discs For Die Grinder Matetrial: Made of premium zirconia abrasive particles with active grinding aids to prevent load and reduce heat accumulation Green Zirconia offers longer life and more aggressive results than Zirconia or Aluminum Oxide. These flexible discs resist chipping, snagging and cracking Discs Kit: 2 Inch diameter 36 grit quick change sanding discs Applications: Carbon steel, cast iron, titanium, aluminum, brass, bronze, copper or hard woods and can also be used on stainless steel, cobalt alloys and nickel alloysFeatures:Zirconia uniform distribution of sanding particles are convenient for rapid heat dissipation during grinding, avoiding the bursting or cracking for high temperature, more safety.