... as conventional flat surfacesConversion function for different hardness scalesSelf calibratingSupplied with NAMAS certified test pieceUsed in ... , inclined, level, oblique, pure verticalmeasured material: Steel ,alloy steel, stainless steel, grey cast iron, ductile iron, zinc alloy, ... , Copper alloy (brass, bronze), pure copper, forged steel . Hardness formats: HL,HB, HRB, HRC,HRA,HV,HSDisplay: high ...