INDEXABLE MILLING RECOMMENDED CUTTING CONDITIONS y Cutting Speed ( inch) Insert Cutting Width ae Work Material Grade Priority Chip <.25DC .25─.75DC DC (Slot) 1st 2nd Breaker Cutting Speed vc (SFM) P Mild Steel MP6120 VP15TF M H 590(460─720)MP6130VP20RTMH525(395 ─ 655)490(360─590)425(330─525)395(330─460)330(260─395) Carbon Steel MP6120 VP15TF M H 49 0(330 ─ 655) 395(295─490) 330(260─395) Alloy Steel, Alloy Tool Steel MP6130 VP20RT M H 425(295─560) 295(230─360) 260(195─330) Pre-hardened Steel MP6120MP6130 VP15TF M HVP20RTMH395(260─525)330(230─425) 330(230─425)295(195─395) 295(165─395)230(165─330) M Stainless Steel MP7130 M 490(395─590) 395(330─460) 330(260─395) K Gray Cast Iron MC5020VP15TF H 655(490─820) 59 0(49 0 ─ 69 0)MH590(395─785)49 0(330 ─ 655)330(195─460) Ductile Cast Iron VP15TF M H 525(395 ─ 655) 460(330─590) 260(195─330) N Aluminum Alloy TF15 MP9120 GM M 1310(655─2625) 1310(655─2625) 1310(655─2625) S Titanium Alloy MP9130MP9120 M 130(100─195)M165(130─230) 130(100─195)165(130─230) Heat Resistant Alloy MP9120MP9130 VP15TF M HVP20RTMH130(100─195)100(65─130) 130(100─195)100(65─130) L L108 INDEXABLE MILLING