BHA Unmounted Flap Wheel for Bench Grinder, 4" x 1" x 5/8" (40 Grit): Amazon.com: Industrial & Scientific
Amazon.com: LIZMOF Flap Disc 4-1/2 x 7/8 Inch for Angle Grinder, 120 Grit Flap Wheel for General Purpose Metal & Stainless Steel, Type 29 Grinding Wheel, Zirconia Abrasive Grinding Disc, 72 Beveled