... -30A BRINELL & VICKERS HARDNESS TESTERFeature & Use:Automatic testing process, no human operating errorPrecision conforms to GB/T 4340.2, GB/T 231.2, ISO6506-2, ISO6507-2 ... .52, 49.03, 98.07, 196.1, 294.2N (1, 2.5, 5, 10, 20, 30kgf) Max. height of test piece ... pc. each Diamond pyramid penetrator: 1 pc. Brinell standardized block: 2 pcs. Vickers standardized block: 2 pcs. Electronic calculator: 1 pc.