FinishingMediumFinishingMediumMediumRoughing FinishingMediumMedium INSERT SELECTION GUIDE Geometry recommendations for (Negative) Steel Stable Unstable WA FS FG FM FT PC MM MT Stainless Steel High Temp. Alloys Stable Unstable Stable Unstable EA EA EM MK MM GG-ML EM MK MM Cast Iron Non-ferrous Stable Unstable Stable Unstable MG- GG-ML MA- 175