£28.98 inc VATRUBI Carbide Scoring Wheel for rough and difficult to cut ceramic tiles. Made of high quality tungsten carbide. It has a patented geometry shaft for maximum precision and minimum vibration.Compatible with RUBI SPEED-N, FAST, STARMAX, STAR, POCKET & PRACTIC manual cutters.Specification:Size: 18mm (3/4in). Add to Basket Quantity