Specification: 40Pack 4.5 inch flap discs (40Grit) ; Center hole diameter: 7/8 inch; Type:T27;Max speed 13,500 RPM.Please wear protective gear before use and don't exceed the max speed when using
Wider Quality Sandpaper: Firmoath flap wheels are made from high quality resin bonded aluminium oxide abrasive, each blade is 17mm wide, 3mm wider than the 14mm of cheaper grinding wheel for a longer life
80 Abrasive Faper Blades: Firmoath sanding disc consists of 80 pieces of abrasive blades structure composed of uniform, full. It is 8 pieces more than the 72 pieces of ordinary grinder sanding disc, which increases the abrasion resistance and is more durable at the same time
Power Sanding: 40 grit flapper wheel belong to coarse sand, which can withstand larger grinding loads, and can quickly deal with the residue of heavier materials on concave and convex surfaces, restoring metal luster
Widely Used: The sanding Grinder wheels of louvers is about 2715°C, which has unique applications in the field of high-temperature materials, and is daily used for grinding, deburring, descaling, polishing, and shaping of metal, wood, stone, and ceramic surfaces