The RUBISCRAPER-250 electric scraper and its innovative blade (patented model). Among the key features of the RUBISCRAPER-250 are: depth control, toughness, and the fact the it does not generate dust, is self-guided and does not break tiles *. The RUBISCRAPER-250 is the safest option to remove grout with a cement base, because unlike others, its tungsten carbide blades do not work through friction, but rather literally dig and tear the grout material. With an ergonomic design and its three working speeds, the RUBISCRAPER-250 allows for small repairs and replacement of pieces, until the complete renewal of the grout on a tiled surface. The interchangeable blades of the RUBISCRAPER-250 are resharpenable and available in various sizes to suit the different existing grout widths.