8-Inch Wheel Marking Gauge

The Big Horn Brass Stair Gauges (2-Pack) are used for making repeated cuts on rafters and stairs. The gauges are crafted with solid brass to help ensure strength and feature sure-grip thumb screws for control. Easily clamps to any metal framing, rafter or carpenter squares. An essential woodworking tool - no square should be without a set. Speed up any measuring job, with better accuracy! Ideal for repetitive work such as cuts on rafters, stringers, or any type of stairway work.