Check the listing for details. 10Pack Flap Disc 40 Grit 7" × 7/8" Sanding Disc Bevel Type #29 For Angle Grinder. Condition: New. Listed at 29.03 USD. Feature:Premium quality : These flap discs are constructed with industrial grade premium aluminum oxide abrasive for strength, durability, and extended disc life as it holds up to high temperatures and pressure.the resin fiber construction complemented by the fiberglass backing plate absorbs vibrations without smearing or contaminating work piece during usageStock removal : Each disc is made with coarse grit 40 aluminum oxide making this abrasive flap disc ideal for aggressive grinding on hard materials like metalBevel : These bevel type 29 discs are angled to be more effective for contours, edge and weld blending, and radius grindingSpecifications : Each disc measures at a 7-inch diameter with a 7/8-inch arbor size, making it compatible with grinders with a.