Not knowing your machine or seeing a print I can only provide suggestions. I did look at your site. It appears that a swiss machine would knock many of your parts out fast. I have two Stars dedicated to turning 316L, They run 24/6.
Suggestions: A carbide oil drill (for a deep hole), I use a Ghuring series 5514 (.161 dia, not oil drill, self-centering). I run at 3500 RPM , .0035 rev, .25 dp. I get about 6000 parts a drill. Also, OSG makes a drill List 1100, specially for stainless. They work great. For turning use ground inserts for finishing. I use Walter, CCGT/VBGT. I use to use molded inserts CCMT/VBMT, they don't work as well. Stainless really like to be sheared. I don't have an answer for roughing, all my turning is in one pass. For threading I use Seco LT inserts in the CP500 grtade. I get at least 10,000 parts a tip (10-32 od). I run at 2000 RPM for turning. Iternal theading I use Micro 100 with TiAlN coating. The coating doubles the tool life.
A key to turning stainless is the coolant/oil. The flash point for water based coolants is 212. For oils it gets up in the 400 range. Huge diffence in tool life.....Oh, and the high pressure coolant makes work fun (except when setting up
).
Once speeds and feeds have been figured out 304 and 316 are some real nice materials to work with. Parts come out with great finishes and burr free.
Good Luck.
Oh yeah, One more thing. I hate using Hex stock. To many irregularities, impurities and tough on inserts. I cut all my hexes with the Polygon now, much easier.