Introducing the 12 Pc Knife Sharpener Sanding Belts Set by POWERTEC.This versatile collection of sanding belts was designed and put together to help you transform your dull, lifeless cutting edges to razor-sharp cutting tools. Precision engineered to perfection, they possess dual directional tape joints to deliver smooth transitional finishes, no matter the application. They possess anti-clogging compounds to resist loading up and are made with industrial grade bonding for long-term usage and durability – helping eliminate constant sander belt replacement.This tool & knife sharpening system is more than just a random mix of premium grade knife sharpening belt sanders. We’ve put together this collection with a unique combo of grit and design, and silicon carbide material suited to tackle a wide assortment of applications. Most professionals know silicon carbide for its hard and sharp abrasive, making it an ideal choice for cutting hard materials like metal, stone, paint, and wood finishes. In addition to sharpening your edges, you can use these sanding belts for multi-stage tool restoration projects, shaping, buffing and polishing.Compatible with: 3" x 21" sanders (check machine dimensions)Package Includes 12pcs Total2 pcs 120 Grits Belts2 pcs 240 Grits Belts2 pcs 400 Grits Belts2 pcs 600 Grits Belts2 pcs 800 Grits Belts2 pcs 1000 Grits BeltsDimensions 3" x 21"POWERTEC is a leading manufacturer of high-quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.