GROOVE-TURN SELECTION GUIDE Chipbreaker Width Range External Insert Width 12 20 11 10 9 8 7 6 6.35 6.35 5 4 3 3.48 2 2.3 2.39 1 G P F Y N HG-Y M A PA T Internal Insert Width 7 6 6.35 6.35 5 4 3 2 2.39 1 P F N HG-Y Suitable Chipbreaker and Required Feed Range for Workpiece Material High Alloy Steel Austenitic Stainless High Temp. Alloys NonferrousMaterials Cast Iron P P P HG-Y HG-Y Y PA* A* Y Y F P P Feed F F PA (finish only) HG T* T* T T N F Low * First Choice 264 ISCAR