MODEL HBV-30A BRINELL & VICKERS HARDNESS TESTER MODEL HBV-30A BRINELL & VICKERS HARDNESS TESTERFeature & Use:Automatic testing process, no human operating errorPrecision ... metals, ceramics, treated layers of metal surface, and the hardness grads of carburized, nitrided and hardened layers of metals. It ... , 196.1, 294.2N (1, 2.5, 5, 10, 20, 30kgf) Max. height of test piece: 130mm Depth of throat ...