Feature & Use * Mechanical reversing switch * It's steady and reliable for testing of curved surface * Precision conforms to the Standards of GB/T 231.2, ISO 6506-2 and ASTM E10 It's suitable to determine the Brinell hardness of unquenched steel, cast iron, non-ferrous metals and soft bearing alloys, etc. Specifications Measuring range: 8-650HBW Test force: 1838.8, 2451.8, 7355.3, 9807, 29421N (187.5, 250, 750, 1000, 3000kgf) Max. height of test piece: 230mm Depth of throat: 120mm Power supply: 380V AC or 220V AC, 50 or 60Hz. Dimensions: 700 x 268 x 842mm Weight: approx. 210kg Standard accessories Large flat anvil: 1 pc. Small flat anvil: 1 pc. V-notch anvil: 1 pc. Tungsten carbide ball penetrator: Φ2.5, Φ5, Φ10mm, 1 pc. each Brinell standardized block: 2 pcs. 20X Readout microscope: 1 pc.