Sanding sheets for universal use. Corundum sanding grains and full synthetic resin bonding. High material removal performance, low clogging, and long service life. Suitable for universal use on nearly all materials. Unpunched and with hook-and-loop quick fastening. Edge length 80 mm, grain size 40. Packaging unit: 50 pieces. The Fein brand. 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 manufacture in Germany today and for which the Swabian traditional company is valued in industry and craftsmanship around the world.