SHITIME 40 Pcs 1/4" Shank Abrasive Flap Wheel Sander, Aluminum Oxide Cylindrical Shape Sanding Wheel for Removing and Polishing(80 Grit)

Tips 1. Before use, soak the gauze in 40°-60°C water for 2~3 minutes to fully damp the gauze, increase the toughness, extend the service life by 30%, reduce processing dust, and no fragmentation. 2. Pay attention to the direction of the blades during installation. The correct installation method: the blade is inclined from the outside to the inside, which is consistent with the rotation direction of the device) 3. Runing for 1 minute before use and observe whether the rotating head of the electric grinder is installed in the correct direction. 4. Please wear a mask and protective glasses before operation to prevent debris from entering your eyes, mouth and nose. Package include 40 Pack: 8 sizes : 16/20/25/30/40/50/60/80 mm Sanding Flap Wheel ?Each size has 5 Pack?