The Tolsen 300mm Combination Square is a versatile tool designed for both industrial workshops and home projects. It features a 12-inch stainless steel blade that provides durability and resistance to wear, paired with a zinc die-cast body for stability during use. To ensure precise positioning, the blade is secured by a brass adjusting screw. This multifunctional tool simplifies layout work by integrating a bubble level for checking horizontals and verticals, as well as a built-in scriber for marking surfaces accurately. You can easily switch between metric and inch scales depending on your project requirements, making it a practical choice for anyone needing a reliable instrument for measuring and marking.