Diamond Resin Bonded and Nickel Bonded Expandable Drum Sanding Belt,Flexible Diamond Sanding Belts and Abrasive Expandable Drum Sanding Belt  are excellent for many Glass,Metal,Stone lapidary projects especially sanding and polishing cabs,Hans manufactured the Lapidary Diamond and Abrasive Sanding Belts for Expanding Drums is resin bonded and metal boned giving a nice smooth finish, especially after working a few glass,lapidary stones and metal etc.including abrasive sanding belt,resin diamond belts and flexible diamond abrasive belts.