Lengthened size—perfect for stair stringers layout, rafter layout, and similar tasks. Enables easy layout on any material, especially when there are crevices at the edge of the wood. Patented product. Recessed cutout design allows alignment with specific ruler marks on the frame square. The marks remain visible through the concave cut when the gauge is fully inserted, increasing the visual field area. Dedicated storage—each gauge includes a steel wire rope for secure attachment and easy storage, helping prevent loss. Lightweight and compact, it can be hung on a work bag, magnetic tool panel, or storage rack. Constructed from anodized aluminum alloy. Hexagonal plane provides increased friction for better grip and performance. Multiple functions: - Stair stringer and rafter layout - Rip guide for circular saw - Framing square attachment - Use with speed square for marking repetitive angles - Use with speed square to guide saw for angle cuts Material: Aluminum alloy Color: Blue Package Contents: 2 x Auxiliary Clip Square Ruler Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.