Sungold Abrasives is an industry leading manufacturer of professional/industrial strength abrasive products. Having been in business for over 40 years they make only the best products at competitive prices. Most popular grits for glass: 60x: extra-rough, fast glass removal (mitered edge) 80x: rough, quick-contouring (auto glass edge) 120x: smooth, Seaming and polishing (desk top edge) 220x: extra-smooth, fine frosted finish (glass shelf edge) 400x: fine, satin finish (opaque edge) cork: polish, smooth luster finish.