The RUBI PLUS CARBIDE Scoring Wheel 3/8" (10 mm.) is a high-performance replacement wheel designed for manual tile cutters, particularly models like the RUBI TZ, TX-MAX, and TX-N series. Constructed with tungsten carbide, this scoring wheel offers exceptional durability and precision, making it ideal for cutting hard ceramic materials, porcelain stoneware, and enameled tiles. Its deep incision capability ensures clean, chip-free cuts even on rigid or high-hardness surfaces.