King 1236ml (Grizzly G4003) Question

Thanks so much. Glad to know I'm not special, just one of the boys so to speak.

Have you ever run yours at the lathe max speed, which I believe is 1400 RPM?

I have run 1400 doing small stuff but I can't say for sure if I ran the 4 jaw to that speed. That chuck is built like a tank, I wouldn't worry about another 50 rpm particularly after the sent it with the lathe.
 
I have run 1400 doing small stuff but I can't say for sure if I ran the 4 jaw to that speed. That chuck is built like a tank, I wouldn't worry about another 50 rpm particularly after the sent it with the lathe.

I agree. The only difference is that my lathe shows a max speed of 1500 RPM, not 1400 as noted on yours. I am positive both lathes actually spin at the same max speed, since all the other gear combos have identical speeds. I'm going to get a tach for mine just to make sure but knowing that the Grizzlys are shipped with the same 4 jaw, I am no longer concerned about it.
 
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