Pferd 60460 Flap Disc 4-12x7/8 60 Grit Pferd Sale! from 740 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Flap Disc Z PSF, 4-1/2" x 7/8" Arbor hole Polifan, Extra Steelox, Zirconia, 60 grit SKU:PFE 60460