Specialized testing equipment for measuring material hardness. Includes Rockwell hardness testers, Vickers hardness testers, Brinell hardness testers, and Shore hardness testers, providing quantitative measurement of surface hardness for metal materials, resin materials, ceramics, and rubber materials. Essential equipment for quality control after heat treatment, material selection, and product inspection, capable of measurements compliant with standards such as JIS Z 2244 and ASTM E18. Unlike tensile testing machines and compression testing machines, these feature non-destructive testing characteristics that measure hardness values without destroying test specimens. Widely used for hardness inspection of automotive parts, mechanical components, and tools, with selectable models including digital display type, analog type, and portable type according to application requirements.