The Pro-Graad 62 Piece Abrasive Sanding Cartridge Spiral Roll Sander Kit is designed for precision sanding, making it ideal for engine porting, weld smoothing, and surface preparation. This versatile kit is perfect for working in tight spaces, such as engine heads and intakes, particularly on SBC/LS3 heads. This kit includes 62 premium aluminum oxide sanding rolls in both cone and cylinder shapes, allowing for maximum adaptability to various tasks. Cylinder rolls can be reshaped as needed, ensuring long-lasting use and consistent results. The high-quality abrasive cloth provides exceptional durability, efficient grinding, and extended life compared to common abrasive materials. The quick-change design enhances workflow efficiency with an easy mandrel swap system, allowing for seamless transitions between different sanding rolls in seconds. This minimizes downtime and maximizes productivity, ensuring uninterrupted work on metal, wood, stainless steel, fiberglass, and more. With two carbon steel 1/4” shank mandrels, this kit is built to handle high-speed applications, supporting speeds up to 25,000 RPM. The sharp aluminum oxide grain effectively penetrates tough materials, making it ideal for deburring, polishing, flash removal, edge-breaking, and surface finishing on metals, titanium, composites, plastics, and rubber. Whether you're a professional machinist, an automotive enthusiast, or a DIYer, the Pro-Graad 62 Piece Abrasive Sanding Kit provides precision, durability, and efficiency for all your grinding and finishing needs. Upgrade your tool kit with this high-performance sanding assortment and experience superior results with every project.