The SPT PREMIUM range of diamond blades has been designed for cutting porcelain stoneware tiles with thicknesses of 20 mm. Being a segmented disc with a narrow notch and wet cut, RUBI SPT PREMIUM discs can work with thicknesses of up to 35 mm and materials as varied as natural stone or sintered stone. Unlike other discs, RUBI's SPT PREMIUM, present a special alloy that, together with the aforementioned narrow notch design, ensures an extra long life, avoiding the crystallization of the diamond when working with such large thicknesses and offers a high cutting speed. The diamond band is formed by sintering and is joined to the steel core by laser welding, the most resistant on the market. All RUBI SPT PREMIUM range discs are suitable for use on cutting machines that incorporate a protection system in accordance with the standard for the use of segmented discs. Taking into account the particularities of each type of disc (continuous, turbo, etc.) and of the materials for which it has been designed, RUBI makes three disc qualities available to professionals: PRO, SUPERPRO and PREMIUM. PRO discs offer the professional user the best price / performance ratio. The SUPERPRO discs highlight, in each disc, its most important characteristic. They are the right choice for the most demanding jobs. PREMIUM discs are the most specialized option. Always offering the best results. RUBI recommends using appropriate clothing, safety shoes, safety glasses, hearing protection, head protection, a dust mask or some type of respirator. Strict attention to the instructions for the safe use of the equipment is required, when cutting with diamond blades, for the protection of your operator and others around the cutting area.