Im relatively new to turning shafts on CNC lathes that have any actual length to them (over 2 feet). My company is buying a long bed CNC in the near future and im just curious as to why the standard for roughing seems to be a CNMG/P 432. Wouldnt a TPG style tool work as well? Is the only reason that the 432 is preferred because it allows you to rough face as well without taking up an additional turrett spot? Just curious what someone with a bit more expierence has to say on this. I know when turning shafts manually i usually used a TPG style turning tool then finished face with whatever else i had on hand. Thanks for the input.