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Bought a Pratt & Whitney 12x30, need to move it now.

Just looked it up top speed is 1000 rpm, but in the day PW did have a 1500 rpm mod from the factory , ( a pulley change that would also raise the lowest speed by 1.5 ) With the same pulleys you have... a vfd could lower your lowest speed and still give you a higher top speed, but in no case should you exceed the 1500 rpm and check the head stock temps. Lower speeds is nice for threading coarse threads, or threading to a shoulder ..Phil

For the - what? Full SIXTY years now, I don't recall EVER threading "to" a shoulder nor down INTO a blind cavity.

Why would one when it is easier and safer to start AT the desired termination of a thread, then thread AWAY from the shoulder or bulkhead towards open AIR?

No drama. Time to step back, watch the cut run, relax, light up a Camel, etc.

Even "hobby" lathes usually have REVERSE, Even lantern TP can mount a tool upside down.
 








 
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