Portable Handheld Portable design: Suitable for hardness testing of materials such as aluminum, copper, brass, plastics, and fiberglass. Easy operation: No experience required, measurements can be taken at any angle, and readings are displayed instantly. Analog dial display: Clear scale, no pre-loading or repeated measurements required. Suitable for soft metals and hard plastics: Measurement range approximately 25 to 150 Brinell hardness, suitable for a variety of industrial materials. Light-indentation measurement principle: Spring-loaded indenter produces a small indentation, suitable for non-destructive testing., Manufacturer: MTHCKXJBSUZ