Portable magnetic Rockwell hardness testerCan test flat workpieces and curved workpieces with curvature ranging from Φ 50mm to infinity. Used for on-site testing of steel plates, steel pipes, shafts, molds, large forgings, and various large and medium-sized heat-treated parts, surface quenching, and parts on assembly equipment, especially suitable for testing the hardness of welds and heat affected zones. Used for production inspection and acceptance inspection, it can replace the low Leeb hardness tester. * Traceable standard hardness block. The indenter has passed the standard Rockwell hardness tester inspection. The force measuring instrument used for verifying the test force can be traced back to the national sub standard.