The Merit 08834180489 Straight Half Glued Coated Cartridge Roll is a specialized abrasive tool designed for precision grinding and polishing in confined spaces. Measuring 3/4" in diameter and 1-1/2" in overall length, this cartridge roll features a 1/4" pilot hole, making it compatible with M-21 mandrels. Constructed with a premium aluminum oxide abrasive, it offers a coarse 60 grit suitable for heavy-duty applications such as removing heavy burrs, stock removal, and eliminating rust, scale, and pit marks. The heavy-duty X-weight cotton backing ensures durability and flexibility, allowing the tool to conform to intricate surfaces and reach areas inaccessible to larger diameter tools. This design is particularly effective for edge breaking and polishing tasks on ferrous alloys, high tensile materials, and wood. Operating at a maximum speed of 18,000 rpm, the Merit 08834180489 cartridge roll is an essential tool for achieving high-quality finishes in demanding grinding and polishing operations.