Masterforce™ Zirconium 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 Resin bonding system, that resists heat build-up and humidity for longer life to the bi-directional flush joint that runs smoothly in both direction, Masterforce™ sanding belts are your first choice for your next project when using a portable belt sander.