9 S740 2-Flute Solid Carbide Chamfering End Mill, 90° Short cut length, 2-flute design provides high rigidity and reduces vibrations. The 90° point is designed for chamfer milling on CNC machines. AlTiN coating increases tool life and improves performance. N NOF2 l g 40° 10° DC DIN 6535HA AlTiN h9 Workpiece material group suitability, starting values for cutting speed (m/min) and Alpha Code. Tables with feed per tooth and correction factors can be found starting from page 112. P1.1 P1.2 P1.3 P2.1 P2.2 P2.3 P3.1 P3.2 P3.3 P4.1 P4.2 M1.1 M1.2 M2.1 199 K 223 K 230 K 170 K 150 K 133 J 138 K 111 J 94 J 82 J 70 J 115 K 97 K 102 K M2.2 M3.1 M3.2 K1.1 K1.2 K1.3 K2.1 K2.2 K2.3 K3.1 K3.2 K3.3 K4.1 K4.2 84 J 94 J 81 J 196 K 145 K 109 K 202 K 164 K 131 J 178 K 136 K 110 J 165 J 125 J K4.3 K4.4 K4.5 K5.1 K5.2 K5.3 N1.1 N1.2 N1.3 N2.1 N2.2 N2.3 N3.1 N3.2 91 J 78 J 65 J 187 J 141 J 109 J 355 N 267 N 179 N 179 K 160 K 115 K 187 K 109 K N3.3 S1.2 S2.1 S3.1 S4.1 56 K 69 J 53 J 40 J 31 J DCON MS tolerance h6. Product KAPR DC DCON MS APMX OAL NOF [°] [mm] [mm] [mm] [mm] S7403.0 90 3.00 3.00 9.00 40.0 2 S7404.0 90 4.00 4.00 12.00 50.0 2 S7405.0 90 5.00 5.00 15.00 50.0 2 S7406.0 90 6.00 6.00 16.00 50.0 2 S7408.0 90 8.00 8.00 20.00 64.0 2 S74010.0 90 10.00 10.00 22.00 70.0 2 S74012.0 90 12.00 12.00 25.00 75.0 2 S74016.0 90 16.00 16.00 32.00 90.0 2 S74020.0 90 20.00 20.00 38.00 100.0 2 49