Manual Threading/Pipe and Bolt Die Head Complete w/Dies, 2 in-11-1/2 NPT, 12-R, Alloy RH no-checkout Split bite jaw increases grip

Manual Threading Pipe and Bolt Die Head Complete w Dies, 2 in 11 1 2 NPT, 12 R, Alloy RH no checkout Split bite jaw increases grip Split bite jaw increases grip over standard bite chucks by providing more contact with the bit Superior gripping force provides high mechanical advantage to convert hand tightening torque into superior bit gripping force Hammerlock® mechanism is a positive locking mechanism that prevents loosening in hammer and other high vibration applications Anti lock nut prevents chuck from lock opening Precision operation that meet or exceed stringent din run out and dimensional specifications Larger surface area means more air flows in and out of the mask without a valve Durable Dura Mesh® shell prevents collapsing from heat and humidity FlexFit® design fits the contours of the face and mouth for comfortable extended wear Soft foam nose cushion and pinch free nose bridge