HVWA 06 portable Vickers for hardness determination on curved surfaces: Unlike the typical Vickers hardness tester, the HVWA 06 is a dimension portable hardness tester that is specially designed for convenience and special shape metals. The instrument with a movable foot can be placed on any cylindrical sample or finished product for a hardness test. Pressure is from 0.025 HV to 0.1 HV with an automatic pressure device.