... as conventional flat surfaces5. Conversion function for different hardness scales6. Self calibrating7. Supplied with NAMAS certified test ... plummet, 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 ...