The OX Tools 48" adjustable T-Square was designed with the tradesmen in mind. The sliding t-head adjusts to any angle and folds easily for storage. Designed with a tough anodized aluminum profile and strong screw lock, the ox adjustable T-Square is built to last. The durable printed scale and etched angle markings provide ease of use and help you to live the trade. Indentations on the T-Square allow you to mark and cut straight from the board edge.