Flap Discs, Z-Stainless, Regular, 4 1/2", 40 Grit, 7/8 Arbor, 13,300 rpm, T29

Features: Polyester heat treated backing and active grinding aid contains active grinding agents to lubricate the grain, allowing the Zirconia to break down with light pressure | For stainless steel applications but also excels on carbon based metals