... , 8-650HBW Test Force: 1.839, 2.452, 7.355, 9.807, 29.42 KN 1) Main technical specifications 1. Measuring ... -650HBW 2. Test Force: 1.839, 2.452, 7.355, 9.807, 29.42 KN (kgf 187.5, 250, 750, 1000 ... . A microscope of 20 times readings: one Brinell hardness tester HB-3000