Construction Made from anodized aluminum with a black oxide stainless steel thumbscrew for exceptional strength and durability. Built to withstand heavy use in workshop or onsite environments while maintaining consistent performance. Large Thumbscrew Design Hexagonal plane design provides a more secure fit along edges compared to traditional round shapes. Features a black oxide steel large thumbscrew that is nonslip, durable, and easy to grip, even when wearing gloves. The integrated antilost holder ensures you can carry it conveniently and keep it close at hand during work. Versatile MultiFunction Use Compatible with framing squares, speed squares, circular saws, and more. Ideal for building stair stringers, laying out rafters, serving as a rip guide for a circular saw, or marking repetitive angles. A reliable tool for framers, woodworkers, and DIY enthusiasts who require precision and efficiency. Portable Storage Solutions Comes with a dedicated steel shelf for organized storage, reducing time spent searching for tools. Equipped with an antilost carabiner that makes it easy to transport or attach to pants, tool bags, or storage panels. Practical Applications Use when constructing staircases to ensure consistent angle and spacing. for roofing projects where precise rafter layouts are essential. Handy for repetitive angle marking in cabinetry or furniture making. This product delivers durability, precision, and versatility, making it an indispensable solution for professionals and hobbyists who value accuracy and efficient workflow.