3M Standard Abrasives Surface Conditioning Flap Disc 821250 4-1/2 in x 5/8-11 MED 5 per case

Best disc for deburring, edge breaking, blending, cleaning, finishing, and polishing after traditional grinding is done with a Resin Fiber or Flap Disc on Aluminum, Steel, and Titanium. The overlapping flaps provide several layers of abrasives for increased durability and enhanced cut rate.