- Premium self-sharpening zirconia alumina abrasive for aggressive, rapid cut rate
- R824 – Durable Y-wt polyester, waterproof cloth backing for excellent grain adhesion, reduced edge-fray and better body retention, resulting in longer life and product consistency
- R823 – Strong X-wt polyester backing makes it more flexible than R824; waterproof; available in finer grit sizes
Please see the Norton Catalog - Narrow Belts PDF file, located in Related Documents in the right hand navigation column of this page, for complete list of specifications for this product.