Home Slickdeals DEWALT DW8309 4-1/2″ x 7/8″ 80 Grit Zirconia Angle Grinder Flap Disc... Slickdeals DEWALT DW8309 4-1/2″ x 7/8″ 80 Grit Zirconia Angle Grinder Flap Disc – $3.49 – FS w/ Prime By ARCOM - 1 October 2020 83 0 SHARE Facebook Twitter Go to the deal page: DEWALT DW8309 4-1/2″ x 7/8″ 80 Grit Zirconia Angle Grinder Flap Disc – $3.49 – FS w/ Prime