Precision Ground for Accuracy - Engineered from high-grade tool steel with ground surfaces to ensure true 90° angles for straight and precise marking and measuring. Hardened & Tempered Blade - The spring steel blade is hardened and tempered for strength, durability and long-lasting performance, maintaining straightness over time, even with regular use. in workshop conditions. Ideal for Engineering, Metalwork & Woodwork - Designed for engineers, machinists and DIY professionals needing a reliable square. Perfect for checking internal angles, layout, marking out workpiece, or verifying the accuracy of right angles in metalworking, woodworking and engineering applications. AASTHA TOOLS - Offering dependable performance for tradesmen and DIY hobbyists alike, the AASTHA TOOLS Try Square ensures reliability, accuracy and durability.