Positive C : Continuous cutting L : Light interrupted cutting Inse r t N E G AT I V E T Y P E H : Heavy interrupted cutting WN P Steel L H LH H CL L RE S M Stainless C L L H CL L C L Negative K Cast iron CL L CH N Non- CH D1 ferrous Trigon, 80° S Superalloy CL C C L L CH IC with hole Hard H material Coated Uncoated Dimension (mm) Application AH8005 AH8015 Chipbreaker Designation AH905 AH630 AH645 AH725 AH120 T6130 T6120 KS20 RE IC S D1 HRM WNMG080404-HRM   0.4 12.7 4.76 5.16 medium cutting WNMG080408-HRM 0.8 12.7 4.76 5.16 Finishing to   PCD / CBN WNMG080412-HRM   1.2 12.7 4.76 5.16 0.25 15º HMM WNMG080404-HMM  0.4 12.7 4.76 5.16 WNMG080408-HMM  0.8 12.7 4.76 5.16 WNMG080412-HMM  1.2 12.7 4.76 5.16 Medium cutting 0.25 15º SA WNMG080408-SA        0.8 12.7 4.76 5.16 WNMG080412-SA      1.2 12.7 4.76 5.16 C D 18º E YN P Steel LH LH H CL CL M Stainless L T RE S K Cast iron CL CL Non- D1 N ferrous Rhombic, 25° IC V S Superalloy L with hole Hard H material W Coated Coated cermet Cermet Dimension (mm) Application AH8015 NS9530 GT9530 Chipbreaker Designation T9125 T9225 T9235 Y RE IC S D1 ZF YNMG160404-ZF       0.4 9.525 4.76 3.81 OTHERS YNMG160408-ZF       0.8 9.525 4.76 3.81 Finishing 0.2 10º ZM YNMG160404-ZM       0.4 9.525 4.76 3.81 medium cutting YNMG160408-ZM       0.8 9.525 4.76 3.81 Finishing to 7º  : Line up Reference pages: WNMG...: External toolholder → 3-48, 3-49 YNMG... : External toolholder → 3-52 - 3-55 2-60