Need information on chucks.

**Cliff Rogers** · 27th November 2009, 09:32 AM

I have 6 chucks that use a pair of tommy bars.

They do have the advantage that they take up less space between centres & the load is moved closer to the headstock so there is/are less leverage & therefore less strain/pressure/force applied to the headstock bearings.

My big lathe has a spindle lock for indexing, I use that to hold the spindle so I can operate just one tommy bar to grip the work & then I can release it & use both hands for the final tightening.

My small lathe doesn't have the spindle lock but it is small enough that I can brace one tommy bar against the bed of the lathe to free up one hand.

I have turned small wooden handles for all my tommy bars & the bars are held to the lathe with strong magnets so I have no problem finding them.

**DJ’s Timber** · 27th November 2009, 09:34 AM

Originally Posted by Sturdee

So a one handed key system is more attractive but the cost is a bit too much for a poor fellow like me.

So either I buy these before they go or save up more pennies.

G'day Peter

I have a G3 that has hardly been used, sitting here at home with a 1" x 10 TPI insert fitted (think yours is 1" x 10 TPI) that you can have for $100 deleivered to your door sometime next week when I'm in town if you want it.

**TTIT** · 27th November 2009, 11:28 AM

Originally Posted by Cliff Rogers

I.......They do have the advantage that they take up less space between centres & the load is moved closer to the headstock so there is/are less leverage & therefore less strain/pressure/force applied to the headstock bearings...........

Thats the only reasonable argument I've seen in their favour to date

**Sturdee** · 27th November 2009, 06:25 PM

Originally Posted by DJ's Timber

G'day Peter

I have a G3 that has hardly been used, sitting here at home with a 1" x 10 TPI insert fitted (think yours is 1" x 10 TPI) that you can have for $100 deleivered to your door sometime next week when I'm in town if you want it.

Thanks DJ for this kind offer. Mine is indeed the 1" x 10 TPI so I'm pleased to buy it from you. PM sent with my details.

Peter.

**DJ’s Timber** · 27th November 2009, 09:57 PM

Originally Posted by Sturdee

Thanks DJ for this kind offer. Mine is indeed the 1" x 10 TPI so I'm pleased to buy it from you. PM sent with my details.

Peter.

And PM replied to

Thread: Need information on chucks.

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