Size:200mm From the Manufacturer --------------------- Two 7-Inch (400mm) rule digital angle rule that calculates angles quickly and accurately and is ideal for woodworking, construction and machining. An industry leader for over 50 years, Trend Routing Technology specializes in router cutters, innovative power tools, power tool accessories, routing jigs and fixtures, safety products and diamond sharpening whetstones for the professional and upscale hobbyist woodworking industry. The company has global headquarters in Watford, England and the North American operation is located in Greensboro, North Carolina.