... medium size moulds, shafts, rollers, tubing and all kinds of metal parts.Used for production inspection and acceptance inspection, ... by the small testers with 4 inches opening size. Main Technical ParametersInitial Test Force:10 kgTotal Test Force:60 kg, ... HRB, HRA etc. 15 scalesResolution:0.5HRAccuracy:Meets the requirements of ISO6508Application:All metals, including steel, some cast iron, copper, ...