A test bar is used to evaluate the mechanical properties and quality of materials. It helps determine characteristics such as strength, durability, and performance, ensuring that the materials meet specific standards and are suitable for their intended applications. Test bars are essential in industries like manufacturing, construction, and metallurgy for quality control, research, and development, as well as for calibrating testing equipment. Material: High-grade steel for durability and minimal deflection. Accuracy: Ground to tight tolerances to ensure straightness and uniform diameter. Length: Available in various lengths to suit different lathe sizes.