SERIES 12A9, 12A5 BALL NOSE ENDMILL Ramping Corkscrew Pocket Contour STEEL L2 D1 L1 D2 D1 D2 L2 Effective L1 Insert Cutter Number Effective Shank Overall Cutting Extension Series Diameter Size/Style Length Edge 12A9F-03017S4R01 0.375 .500“ Cylindrical 1.85 6.00 2 09 12A9H-05019S4R01 0.500 .500“ Cylindrical 1.92 7.00 2 12 12A9K-06015S6R01 0.625 .625“ Cylindrical 1.58 8.00 2 15 12A9M-07018S7R01 0.750 .750“ Cylindrical 1.85 8.00 2 19 12A9R-10018S1R01 1.000 1.000“ Cylindrical 1.81 8.00 2 25 12A9S-12030S9R01 1.250 1.250“ Cylindrical 3.03 11.81 2 31 CARBIDE D1 steel brazing carbide D2 L1 L2 D1 D2 L2 Effective L1 Insert Cutter Number Effective Shank Overall Cutting Extension Series Diameter Size/Style Length Edges 12A5F-03015S8R01 0.375 .375“ Cylindrical 1.50 6.00 2 09 12A5H-05015S4R02 0.500 .500“ Cylindrical 1.50 4.00 2 12 12A5H-05015S4R01 0.500 .500“ Cylindrical 1.50 7.00 2 12 12A5K-06018S6R02 0.625 .625“ Cylindrical 1.88 4.00 2 15 12A5K-06018S6R01 0.625 .625“ Cylindrical 1.88 7.00 2 15 12A5M-07022S7R02 0.750 .750“ Cylindrical 2.25 4.00 2 19 12A5M-07022S7R01 0.750 .750“ Cylindrical 2.25 7.50 2 19 Operating Guidelines on page 99. 72