Suitable for TS, TR, TF, TF MEISTER, SPEED and STAR manual cutting ranges, it includes one 1/4 in. scoring wheel and one 3/8 in. scoring wheel. Practical plastic case with transparent cover for up to 5 Rubi scoring wheels. The exclusive machining and grinding of the roller guide on the Rubi 1/4 in. scoring wheel allows this scoring wheel to offer exceptional quality in scoring ceramic tiles for walls. The incision of the roller guide on the Rubi 1/4 in. scoring wheel is clean and shallow, resulting in a cut without chipping the enamel or any deviations. The Rubi 3/8 in. scoring wheel is ideal for scoring stoneware ceramic tiles, especially those with semi-rough finishes. The incision of the Rubi 3/8 in. roller guide is deep, making it possible to overcome the surface irregularities of a semi-rough enamel and facilitating the separation of extremely hard materials. Material: Tungsten.