WCGT-21.51-UEU-DNU10GT/ WCGT-040204-UEU-DNU10GT, HP-High Performance 7° ISO Insert, For General Application, Higher Feed Rate, Better surface Finish in stable working, Hard & High Wear Resistant, Uncoated, High Cutting Speed, Small Depth of Cut and Low Feed per Rev, Brittle! Not for interrupted Cut, For Aluminum, Stainless Steel, Non-Ferrous, Wet Working Condition, Sold in (Pack of 5)