Hi. I've got a bit of Ø2" pure iron to turn and I have no idea how hard I can hit it. I'm using a Walter Tiger-Tec DNMG insert with a 0.8mm rad and I'm hoping for a minimum 2mm depth of cut. I've been running it at 150 m/min with a feed of 0.2mm and it seems to be ok but I've got 3000 components to make so I want to get it spot on really. Any suggestions would be appreciated.