Technical data: Shank diameter: 3.2 mm Working diameter: 28.6 mm Working height: 9.5 mm Accessories - length: 50.0 mm Grit: 80 Width: 30.0 mm Length: 30.0 mm Height: 44.0 mm Maximum speed: 35,000/min. Flap discs are excellent for removing finish coatings and gently cleaning material because they are less aggressive than sanding belts (rings) and do not abrade the material surface as quickly. They also generate less heat during operation due to the flap design, so there is less risk of burning the material. Grind and polish flat or contoured surfaces. Flap discs are most effective when used primarily for finishing after prior intensive surface abrasion and material removal. Flap discs are most effective when the edge lies flat against the workpiece, allowing for efficient abrasion. Recommended speed: Aluminum: 30–35000 rpm. Brass: 30–35000 rpm. Copper: 30–35000 rpm. Hardwood: 30000 rpm. Plastics: 10000 rpm. Softwood: 35000 rpm. Steel: 35000 rpm Package contents: 1 pc. ** Illustrative photo.