Grit material: Zirconia Alumina. Product type: Abrasive wheels. This NORTON #66623341107 Flap Disc is a high-quality abrasive material suitable for use in metalworking applications. The disc is designed to have a center hole size of 7/8 inches and a diameter of 4-1/2 inches. It has a grit of 36 and a speed of 13,300 rotations per minute. The Flap Disc is made of fiberglass and has a PK2 design. It is suitable for use with a Type 29 Flap Disc Type and is... Each box contains 10 discs. 36 Grit - 10 Pack Powertec 4-1/2 in. Zirconia Flap Discs - 40 Grits for Angle Grinder, 20PK, 11101-P2N 10 Packs 60 Grit Flap Discs, 4" x 5/8" Flat Type (T27) Flap Grinding Wheel, Enhanced Calcined Zirconium Abrasive Sanding Disc, Suitable for Both Metal and Wood Ensure flap disc size is compatible with your angle grinder before purchasing Grit type: Coarse, 36 grit. Designed for efficient material removal and surface finishing , Manufacturer: ABarProsives. 115mm Grinding Discs NEIKO 11107A 10 Pack Aluminum Oxide Flap Discs 4-1/2 For Angle Grinder, 60 Grit Flapper Wheel Flat T27 Grinding Wheel 4 5 Inch Flap Disc 7 8 Arbor Grindin 4.5 Inch Grinding Wheel Committed to providing reliable and efficient abrasive solutions