Jumbo Blue Zirconia Flap Disc, Type 29, 60-Grit, 4.5-In. Tool Storage & Work Surfaces Posi temp pressure balancing valve

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Jumbo Blue Zirconia Flap Disc, Type 29, 60-Grit, 4.5-In. Tool Storage & Work Surfaces Posi temp pressure balancing valveFlap disc, blue zirconia, 60 grit type 29, depressed center, 4 1 2" with 5 8 11 arbor za60, for right angle grinders. cuts fast and outlast sanding discs 10 to 1. great flexibility. ideal for rough or fine finishing. multiple layers of zirconia cloth flaps constantly exposing new extra sharp grinding points. laminated by state of the art automated equipment. reinforced fiberglass backing plate. each disc balance tested for vibration free grinding