"FORNEY" THREAD ARBOR FLAP DISC *4-1/2" x 5/8"-11" *Type 29 construction *80 grit *Blue zirconia flap disc *To be used with 4-1/2" angle grinders *Cuts fast and outlasts sanding discs *Flexibility *Ideal for rough or fine finishing *Slightangle work face to make full coverage of work surface easier