Feature & Use * Optimized mechanical frame. Manual testing process, no need for electric controlling * It is steady and reliable for testing of curved surface * Precision conforms to the Standards of GB/T 230.2, ISO 6508-2 and ASTM E18 It is suitable to determine the Rockwell hardness of ferrous, non-ferrous metals and non-metal materials. It can be widely applied in the Rockwell hardness testing for heat treatment materials, such as quenching, hardening and tempering, etc. Specifications Measuring range: 20-88HRA, 20-100HRB, 20-70HRC Test force: 588.4, 980.7, 1471N (60, 100, 150kgf) Max. height of test piece: 210mm Depth of throat: 165mm Min. scale value: 0.5HR Dimensions: 522 x 293 x 729mm Net weight: approx. 68kg Standard accessories Large flat anvil: 1 pc. Small flat anvil: 1 pc. V-notch anvil: 1 pc. Diamond cone penetrator: 1 pc. 1/16" steel ball penetrator: 1 pc. Rockwell standardized block: 5 pcs.