The 3M 3" x 21" 50 Grit Coated Aluminum Oxide Coarse Abrasive Belt is designed for effective material removal. Its tube-shaped band is suitable for fitting inner and outer contours, efficiently addressing parting lines, imperfections, and burrs. The belt features an X-weight cloth backing that ensures it can endure heavy sanding and grinding processes. With a resin bond, the belt can withstand high heat and pressure, making it suitable for demanding applications. The tough aluminum oxide abrasive mineral offers a rapid cut rate and is adaptable for use on various substrates.