Designed for the most rugged of floor sanding applications, BlazeX fiber discs offer superior cut rates and product life. The stiffer fiber back gives BlazeX an aggressive cut while the ceramic grain gives it a natural super-fine scratch pattern. Whether you are dealing with aluminum oxide coated pre-finished flooring or several layers of hard finish the Norton BlazeX fiber disc will offer the best cut rate and longevity of any product on the market.