The HANS Expandable Rubber Drum Wheel is a versatile lapidary and grinding tool designed to achieve smooth and highly polished surfaces on gemstones, stone, metal, ceramics, and wood. Its soft, pliable rubber surface expands during rotation to securely grip diamond sanding belts, silicon carbide belts, or abrasive belts, providing consistent contact for efficient grinding and polishing. The heavy machined hub comes with bushings to fit 1”, 3/4”, 5/8”, and 1/2” arbors, while angled expansion slots in the rubber rim lock belts in place and allow for quick belt changes. Perfect for low-speed applications, the flexible drum wraps around curved surfaces to remove flats, while at higher speeds it acts like a hard rubber grinding wheel for versatile polishing and shaping. Available in multiple sizes — 6"x1.5", 6"x2.5", and 8"x3" — the expandable rubber drum wheels accommodate belts of corresponding widths and lengths (sold separately), making them ideal for professional lapidary, gemstone shaping, woodworking, metalworking, and general grinding projects. For best results, use with diamond or silicon carbide sanding belts and do not operate without belts to protect the rubber rim. With HANS Expandable Rubber Drum Wheels, you can achieve precision contouring, fast material removal, and high-quality polished finishes in your workshop or studio.