Gym Floor Resource offers Diamondback Abrasive sanding belts which feature exceptionally durable cloth backings and smooth, strong splices to reduce chatter. The Diamondback Belts feature economical Aluminum Oxide or premium Zirconium mineral that starts sharp and stays sharp long after many other belts have stopped cutting. The backings, adhesives and abrasive minerals used on each belt are all carefully matched to make sure they work together. This innovative construction helps the cutting surface stay cool, which minimizes loading and maximizes belt life. Diamondback belts are economical and use a high-quality synthetic mineral.