... accuracy,low cost 4.3 years warranty Protable rockwell hardness gauge HZ-2507A Equipment discription:PHR Series Portable Rockwell / Superficial Rockwell ... HRA,HRB,HRC,HRD,HRE,HRF,HRG,HRK,HRH nine gauge choice. Test range from very soft aluminum, lead, zinc ... rockwell hardness gaugeHardness scaleRockweel—A, B , C , D , E , F , G , H , KSuperficial rockwell—15N , 30N , 45N , 15T , 30T , 45TTest ...