... speeds by rotating button 3. 220V voltag 4-SETS Shear Box Direct Shear Testing Apparatus ... Shear rate: 5, 2.4, 1.5, 1, 0.8, 0.02, 0.01mm/min6. 4 specimens at the same test7 ... pushing mechanism, high precision, low noise, MCU control, variable speed displayed by the controller, easy to operate, ABS ... 1.2Kn range ) ST1005E-1F Displacement Transducer 4 SETS OF Shear Box including Portou Disc, cutting ...