Positrol Workholding turning & first operation devices compensate for the imperfections, taper, and chips commonly found in raw bar stock, castings, and forgings. Multi-point jaws or collets can be serrated or fitted with grippers to improve clamping force and decrease lobing.
Pullback action provides added stability and maintains overall length. Many first operation turning chucks have thru spindle coolant and air sensing capability. Positrol chucks are designed to maintain the maximum rpm without losing gripping force.