9 S771HB 5-Flute Solid Carbide End Mill, Chip Dividers and Through Coolant Short cut length, 5-flute design with neck recess and unequal helix helps to reduce vibrations especially when using the cutter in dynamic milling strategies. AlCrN coating improves performance and extends the tool life. Chip divider and through coolant improve chip evacuation in pocketing operation. FS NOF 5 l g = 10° DC AlCrN 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 M2.1 222 J 248 J 255 J 189 J 166 J 147 I 153 J 123 I 104 I 90 I 78 I 128 I 108 I 113 I 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 93 I 105 I 90 I 218 J 162 J 122 J 225 J 183 J 146 I 198 J 152 I 123 I 185 I 139 I K4.3 K4.4 K4.5 K5.1 K5.2 K5.3 S1.2 S2.1 S3.1 S4.1 102 I 87 I 72 I 209 I 156 I 122 I 76 I 59 I 44 G 35 G DCON MS tolerance h6; RE ±0.01 mm. Product DC RE DCON MS APMX OAL NOF LU DN [mm] [mm] [mm] [mm] [mm] [mm] [mm] S771HB10.0 10.00 0.20 10.00 25.00 72.0 5 30.00 9.70 S771HB12.0 12.00 0.20 12.00 30.00 83.0 5 38.00 11.70 S771HB16.0 16.00 0.30 16.00 39.00 92.0 5 44.00 15.70 S771HB20.0 20.00 0.30 20.00 48.00 104.0 5 54.00 19.70 44