TNMG-433-PEM-DPC15HT/ TNMG-220412-PEM-DPC15HT, HP-High Performance Negative Turning Insert, For Medium Application, Higher Feed Rate, with Better surface Finish in stable working condition, Hard & High Wear Resistant, CVD Multi Layer Coating, High Cutting Speed, Medium Depth of Cut and Medium Feed per Rev, Brittle! Not for interrupted Cut, For Carbon & Alloy Steel, Stainless Steel, Cast Iron, Wet Working Condition, Sold in (Pack of 5)