SERIES OP6N 45 DEGREE LEAD FACE MILL (SCREW HELD - 9MM INSERT) WITH 16 INDEXES Lead Angle Chamfer Facing Coolant H D1 D3 BC .20 D2 .55 42° D1 D3 Effective Overall Number H D2 K Bolt Cutter Number Diameter Diameter of Inserts Height Bore Dia. Keyway Circle Coolant OP6N-25R01 2.500 3.04 5 1.570 0.750 0.312 NA Yes OP6N-30R01 3.000 3.54 6 1.750 1.000 0.375 NA Yes OP6N-40R01 4.000 4.54 7 2.375 1.500 0.625 NA Yes OP6N-50R01 5.000 5.54 8 2.375 1.500 0.625 NA Yes OP6N-60R01 6.000 6.54 10 2.375 1.500 0.625 NA No OP6N-80R01 8.000 8.54 12 2.375 2.500 1.000 4.00 No OP6N-10R01 10.000 10.54 14 2.375 2.500 1.000 4.00 No OP6N-12R01 12.000 12.54 16 2.375 2.500 1.000 4.00, 7.00 No Operating guidelines on page 362. 170