3169 3X18 A/O BELT 50GR (2PK) | Gator Aluminum oxide sanding belts are designed to fit the most popular portable belt sanders offered today. These industrial-quality belts have long set the standard for quality and value. From the durable red resin bonding system, it resists heat build-up and humidity for longer life to the bi-directional flush joint that runs smoothly in both directions. Gator sanding belts are your first choice for your next project calls for using your portable belt sander.