Indexable Milling InsertsMilling Indexable Milling Inserts Designations For Milling Insert A P M T 16 04 08 PD ER - MG 1 2 3 4 5 6 7 8 9 1 Insert Shape 2 Relief Angle A B C D E H K L A B C D E M O R S T V W F G N P 3 Tolerance Class Tolerance A C E F G H J K L M N U d± 0.025 0.025 0.025 0.013 0.025 0.013 0.05~0.15 0.05~0.15 0.05~0.15 0.05~0.15 0.05~0.15 0.08~0.25 Range of m± 0.005 0.013 0.025 0.005 0.025 0.013 0.005 0.013 0.025 0.08~0.2 0.08~0.2 0.13~0.38 tolerance s± 0.025 0.025 0.025 0.025 0.05~0.13 0.025 0.025 0.025 0.025 0.05~0.13 0.025 0.13 4 Insert Features A C F G H J M N Q R T U W X Special shape 5 Edge Length 6 Thickness A B C D E H Index 01 T1 02 03 T3 04 05 06 07 09 K L M O R S S(mm) 1.59 1.98 2.38 3.18 3.97 4.76 5.56 6.35 7.94 9.52 T V W 7 Corner Radius 8 Edge Clearance A D E F P Z 45° 60° 75° 85° 90° other 02 04 08 16 20 … A B C D E F G N P Z 0.2R 0.4R 0.8R 1.6R 2.0R … 3° 5° 7° 15° 20° 25° 30° 0° 11° other 9 Cutting Edge & Direction Chip Breaker Geometry E F T S R N L AL, FG, SG, MF, Chamferd MG, RG, HG Rounded Sharp Chamferd and rounded A278