Feature & Use: * Small volume, convenient for carrying, easy operation * Precision conforms to GB/T 231.2, ISO 6506-2 and ASTM E10 It can be used to determine the Brinell hardness of ferrous metals with elastic modulus approximate to 2×105 MPa. It is especially suitable to determine the hardness of heavy parts on the spot. Specifications: Measuring range: 100-400HBS Steel ball diameter: 10mm Impact capacity: 4.9J Dimensions: Φ55 x 370mm Weight: approx. 3.3kg Standard accessories: Portable Brinell standardized block: 1 pc. 20X Readout microscope: 1 pc.