Supermax 1338 crossfeed acme?

aliva

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As said above it's more than likely 5/8 left hand. Acme stepped taps are expensive.
you could buy some 5/8 LH acme rod and make your own tap. I did this while making a new nut for my lathe. I had a piece of acme rod.
 

DAT510

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Mcmaster Carr sells Acme lead screws and nuts that you can cut and machine to meet your needs.

 

sasanifab

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Mcmaster Carr sells Acme lead screws and nuts that you can cut and machine to meet your needs.

It was 5/8-8 ..... made a new one today , 1 thousands backlash
 

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sasanifab

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Finished .... 0 backlash
 

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