... metal & hard alloy. BRINELL ROCKELL VICKERS HARDNESS TESTER MODEL HBRV-187.5 BRINELL ROCKWELL VICKERS HARDNESS TESTERFeature & Use.Direct reading from ... 1471, 1839N (30, 31.25, 60, 62.5, 100, 150, 187.5kgf)Max. height of test piece: 200mmDepth of throat: 160mmPower ... block: 1 pc.40X Readout microscope: 1 pc. MODEL HBRVU-187.5 BRINELL ROCKWELL VICKERS OPTICAL HARDNESS TESTER Feature & UseDirect reading ...