Make the most of your demanding coarse grit stock removal applications when using the BlueFire R801/R823P/R884P coarse grit cloth narrow backstand belt. The durable self-sharpening zirconia alumina abrasive improves the life-span of your belt by 30 percent, while the lubricating grinding aid in R801 belts makes it perfect for cutting heat-sensitive materials. The R823 features a flexible X-weight polyester waterproof backing for light to moderate applications, while the R801 and R884P excel on medium- to high-demand applications with their Y-weight polyester waterproof cloth backings.