Forney 71920 Flap Disc, 4-1/2 in Dia, 5/8-11 Arbor, 40 Grit, Medium, Zirconia Aluminum Abrasive

High density flap disc with depressed center. Jumbo blue zirconia. 4-1/2 in with 5/8-11 arbor. For right angle grinders. Cuts fast and outlasts sanding discs. Great flexibility. Ideal for rough or fine finishing the extra tough jobs. Long lasting, cooler running Jumbo style. Wheel size: 4-1/2 in, arbor 5/8-11, maximum rpm: 13,300, tool type: right angle grinder.