... ) HLD; 2,Hardness formats: HL,HB, HRB, HRC,HRA,HV,HS; 3, LCD display Hardness gauge LK120Features:Easy ... conventional flat surfacesConversion function for different hardness scalesSelf calibratingSupplied with NAMAS certified test pieceUsed in any directionLightweight, portable ... bronze), pure copper, forged steel . Hardness formats: HL,HB, HRB, HRC,HRA,HV,HSDisplay: high contrast segment code type ...