100Pcs flap disc sanding grinding premium zirconia 4-1/2 Inch Diameter Specification: Diameter: 4-1/2 inch Abrasive Grit: 40 Arbor Hole Size: 7/8 inch Maximum Rotational Speed: 13300 RPM Features: 1. Flap discs uses high-quality zirconia as its raw material for excellent wear resistance and durability. 2. Compared with alumina material, zirconia abrasive can carry out more powerful cutting and its longer service life, can greatly reduce the use of cost. 3. The zirconia flap disc sanding grinding can used for fast and durable cutting and finishing applications. 4. Flap discs can be applied to stainless steel, or can be milled and polished on mild steel or metals. Package Includes: 1 x 100Pcs flap disc
