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Lathe power chucks
Rota NCK plus power chucks from Schunk Inc. for CNC lathes are

The chucks feature large throughholes, improved lubrication systems, and high clamping repeatabilities. One-piece bodies increase rigidity, and the chucks come with a two-year warranty.
http://www.americanmachinist.com/304/Issue/Article/False/11549/Issue
For more information visit CNC Engine Lathe category