【Wide Compatibility】 Works seamlessly with most framing, speed, and rafter squares. Perfect for marking stair stringers and making precise right-angle measurements on all woodworking projects 【Rugged and Reliable】Made from CNC-machined anodized aluminium alloy with a durable hexagonal design. Resistant to rust and wear, built to handle tough jobsite conditions 【Compact and Portable】Features an anti-loss holder and hook for easy carrying on a tool belt or in your bag. Keeps all knobs organised and secure during work 【Versatile Use】Doubles as a circular saw guide for cross-cuts and angle cuts. Ideal for stair tread gauging, rafter layouts, and repetitive square markings 【Professional Precision】 Includes two hexagonal gauges fitting squares up to 8mm thick. Lightweight aluminium ensures a firm grip without damaging your tools or slowing your work, Manufacturer: fjaldjfu