Brinell hardness tester HB-3000 is used to test unquenched steel, cast ... metals and soft bearing alloys, etc. BRINELL HARDNESS TESTER MODEL HB-3000 BRINELL HARDNESS TESTER Feature & Use . Mechanical reversing ... , 7355.3, 9807, 29421N (187.5, 250, 750, 1000, 3000kgf) Max. height of test piece: 230mm Depth of throat ... Readout microscope: 1 pc. BRINELL HARDNESS TESTER MODEL HB-3000 BRINELL HARDNESS TESTER