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- Nov 23, 2014
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- 2,609
That's one of the pluses of the universal gear box in the G0709. There are no additional change gears to fiddle with. The full range does require a gear swap on the quadrant for around >13 tpi as opposed to <13 tpi. One knob changes between English and Metric which was one of the selling points for me. I think it's the G0750 from Grizzly that has a really bad qcgb for gear changes. Pretty much have to fiddle with change gears in the quadrant when going between commons like 13, 16, 18 and 20. I'd pass on that lathe for that reason.Be aware that the lathes with the enclosed gearboxs need gear changes for the range of common inch threads and feeds. The ones with the open Norton gearbox (4002-3 series) will do 4 to 112 TPI with no gear changes. Even these machines, however, need some gear changes for metric. I don't know if this matters to you but it was a game changer for me.
Bruce