Titanium

[Madonno]

30mm (1.2 inches) bar turned down to 26 mm
Machined length: 145 mm (5.7 inches) no tailstock
I've used these Iscar inserts:
Roughing: CNMX 120708 Grade: IC 907 Cutting speed: ~ 70 m/min, feedrate: 0.3 mm/revolution, Cutting depth: 1st cut 1.5 mm, 2nd cut 0.5 mm
Finishing: TNMG 160404 TF Grade: IC907 Cutting speed: ~ 50 m/min, feedrate: 0.12 mm/revolution Cutting depth: ~ 0.1 mm