Comprehensive Grit Assortment: This set includes 20 sanding belts with 5 belts each of 40, 60, 80, and 120 grits, designed to tackle tasks from rough grinding to fine finishing. Each belt measures 3x21 inches, perfect for handheld belt . Enhanced Durability and Performance: Crafted from premium blue zirconia, renowned for its superior durability and cutting capabilities. These sanding belts boast a strong resin bond that ensures minimal grain detachment under high heat and pressure. Smooth Operation with Seams: Each belt features a precision-engineered, diagonal lap splice that eliminates belt bumps and enhances seam durability, ensuring smooth operation and even under heavy use in sanding applications. Optimal Heat Dissipation: Fully bonded with top-quality resin, these belts are not only tough but also efficient in heat management during intensive sanding jobs. Such design reduces heat build-up, preserving the integrity of both the belts and the workpiece. Versatile Tool for