Amazon.com: Milwaukee 5 Pack - 4 1 2 Hubbed Grinding Wheel for Grinders - Aggressive Grinding for Metal & Stainless Steel - 4-1/2" x 1/4 x 5/8-Inch | 11 UNC | Depressed : Industrial & Scientific
Amazon.com: Norton 4-1/2 in. Dia. x 7/8 in. Zirconia Aluminum Oxide Flap Disc 60 Grit 1 pc. : Industrial & Scientific
Amazon.com: EZARC Flap Discs 40 Grit, 4 1/2 x 7/8-Inch Flap Sanding Disc, Type 29 Zirconia Grinding Wheel for Stainless Steel, Sheet Metal (10 Pack) : Industrial & Scientific
amoolo 4 1/2 Inch Flap Disc, 10PCS-60 Grit Angle Grinder Sanding Discs, High Density Abrasive Grinding Wheels Type 29 for Metal/Wood Grinding (7/8 inch Arbor Size) - - Amazon.com
Amazon.com: 15Pcs Zirconia Flap Disc, 4-1/2-Inch x 7/8-Inch, 40 60 80 120 Grit Flap Sanding Disc, Type 29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, for Metal and Wood Grinding : Industrial & Scientific