Make repeated cuts on stairs and rafters or mark stair stringers quickly and easily using these Empire® Level Brass Stair Gauges. This tool offers easy-to-grip thumb screws that provide maximum control and let you tighten and loosen the gauges without the need for additional tools. Made of solid brass. the Empire Level brass stair gauges are built for long-lasting use and durability. For your convenience. they quickly attach to any Empire framing or rafter square and help eliminate mistakes in marking or reading the square. While they do a big job. the tool is only one inch in size and easily fits into most tool belt pouches and tool boxes for storage purposes. Each Empire Level stair measuring tool has a gold finish that helps improve its visibility on even cluttered job sites.