Multipurpose knife for cutting carpet, PVC flooring, cardboard, bitumen shingles, and roofing felt. It features three cutting surfaces. The brand is Fein. In 1867, Wilhelm Emil Fein founded a company for the manufacture of physical and electrical devices. His son, Emil Fein, invented the first electric hand drill there nearly 30 years later, in 1895. This invention laid the foundation for the highly reliable power tools that Fein continues to produce in Germany today, for which the Swabian traditional company is valued by industries and craftsmen worldwide.