This Norton flap disc features zirconia alumina abrasive for aggressive stock removal and long life on metal surfaces. The self-sharpening abrasive grain stays sharp throughout the disc's life, delivering consistent cutting performance on stainless steel, carbon steel, and other metals.

• 4-1/2" diameter with 5/8"-11 arbor
• 40 grit for heavy stock removal and weld grinding
• Zirconia alumina abrasive - self-sharpening for long life
• Fiberglass backing for stability and reduced vibration
• Smooth finish without gouging
• For use on angle grinders
• Max RPM: 13,300

Applications: Stock removal, weld blending, beveling, deburring, and edge chamfering on stainless steel, carbon steel, cast iron, and other metals.