- 4 1/2” Flap disc- 60 grit course- (2) Pk- Use: Deburring & Rust Removal- Ideal for use on wood and metal- Arbor size 7/8- Max RPM 13,300Hart 4-1/2" Flap Disc 60 Grit Course -SKU: 840092600548 A20$5.00PriceQuantity*Add to Cart