3-jaw power chuck / self-centering / for tubes

Automatic self-centering BIG THRU-BORE CHUCK with 3 concentric retractable jaws + 3 floating jaws with stiffening
Use: Thread cutting of pipe ends. The machining cycle is as follows: the 3 external self-centering-retracted jaws are operated. This ensures the perfect centering of the end of the tube in relationship to the centerline of the machine: The tube is then clamped with the internal floating jaws.The moving jaws are then retracted. This fixture elimiinates all machining rejects due to pipes with non-straight-ends.