... flat surfacesConversion function for different hardness scalesSelf calibratingSupplied with NAMAS certified test pieceUsed in any directionLightweight, portable ... pre-set limit, hardness, when beyond the scope it automatic alarm, convenience customers batch test.English display: menu ... Copper alloy (brass, bronze), pure copper, forged steel . Hardness formats: HL,HB, HRB, HRC,HRA,HV,HSDisplay: high ...