Features: 1. Guerjie brand flap discs are made of high quality material. Can be in fiberglass or plastic backing. 2. Application: cleaning of welding seams, deburring. 3. It is usually used for grinding metal, stainless steel. 4. Max working speed: 80M/S. 5. Features: Low noise, cool grinding processes with excellent finishing effect, quick and easy to install. 6. Variety of specifications: