Magnetic Stud Finder C.H. Hanson's Magnetic Stud Finder uses powerful rare earth magnets to locate metal and wood studs in walls. Because it uses magnets, batteries are not required. The Stud Finder includes a rotating level for vertical and horizonal marking. This small but powerful tool fits easily into your pocket, armed and ready to help with remodeling, new construction, and all sorts of DIY projects. C.H. Hanson History In 1866 Christian Henry Hanson founded C.H. Hanson, basing it off a stencil business he knew in Denmark. The first location was based in Chicago, where he began producing hand-cut stencils. Throughout the years, the company remains true to its past while reinventing themselves for the future. C.H. Hanson has produced everything from license plates to barricade tape, hand tools to marking devices. Tools for Generations Today, the C.H. Hanson Company continues its commitment to innovation and quality serving both the metalworking and construction markets and remains the market leader in stencils, tags, steel stamps, workholding and other metalworking machine tools and accessories.