Best Way To Hold Hex Stock In Lathe

The chuck run out will be less then the error inherent in easily obtained cold rolled steel or brass and aluminum extruded hex shaped materials, if you require a higher degree of precision you will have to source material from elsewhere or mill/grind it yourself. If the hex portion is simply a wrench surface high precision is not required.
 
Once you grip the stock solidly in the chuck, any chuck runout won't be an issue if you complete all operations before removing it. . .
 
Is the hex small enough to fit 5c series collets I think they go to 1" or better. If you chucks run out is to much buy a collet .
 
Definitely trying to over think things. I guess that's what happens when you have more time to think about something than you have to actually get out and do it...... Recovering from back surgery and getting really tired of doing nothing!! Thanks to all for your suggestions and thoughts.
 
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