... ,reliable braking Detailed description This series of power tong is used for quick make-up/break-out ... /3XXQ114/6xXQ140/12XXQ140/20XPipe size range of master tongφ60-8923/8”-31/2”φ60-11423/8”- ... claws clamp2.Type:XQ140/20X,XQ140/12X,XQ114/6X,XQ89/3X3.adopt the braking belt, reliable braking4.without ... and buy lenghthening guide pole assembly,the backup tong can clamp the tubing body6.torque control system ...