... are factory. 5.We can reduce your costs. Product introduction: YNK series pressure torque Gauge has a good anti-vibration performance ... as hydraulic tong and casting tong.YNK series pressure torque Gauge Technical parameter: 1. Model: YNK-150,YNK-100 2. range of specification ... ″,R3″,NPT1½″,NPT2″,M20×1.5,M42×2,M36×2 YNK-100 Pressure gauge for oil and gas drilling rig