9 C247 Multi-Flute HSS-E-PM End Mill, Brigh Finish Short cut length, 4, 5, 6 or 8 flute design provides high rigidity for general profile and ramp milling applications in mild steels and non-ferrous materials. HSS-EPM N NOF4-8 l g 30° 12° DC Bright k10 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 194. P1.1 P1.2 P1.3 P2.1 P2.2 P3.1 P3.2 P4.1 M1.1 M1.2 M2.1 M2.2 K1.1 K1.2 53 D 59 D 61 D 45 D 40 D 36 D 29 C 22 C 34 D 29 D 31 D 25 C 30 D 22 D K1.3 K2.1 K2.2 K2.3 K3.1 K3.2 K3.3 K4.1 K4.2 K4.3 K4.4 K4.5 K5.1 K5.2 17 D 55 D 45 D 36 C 49 D 37 D 30 B 45 C 34 C 25 C 22 B 18 B 51 C 39 C K5.3 N1.1 N1.2 N1.3 N2.1 N2.2 N2.3 N3.1 N3.2 N3.3 N4.1 S1.1 S1.2 S2.1 30 C 95 F 71 E 48 E 48 D 43 D 31 D 50 D 29 D 15 D 50 D 30 C 25 C 20 B S3.1 S4.1 15 B 12 B DCON MS tolerance h6. Product DC DC DCON MS APMX OAL NOF LU DN [inch] [mm] [mm] [mm] [mm] [mm] [mm] C2472.0 – 2.00 6.00 7.00 51.0 4 – – C2472.5 – 2.50 6.00 8.00 52.0 4 – – C2473.0 – 3.00 6.00 8.00 52.0 4 – – C2471/8 2) 1/8 3.18 6.00 10.00 54.0 4 – – C2473.5 – 3.50 6.00 10.00 54.0 4 – – C2474.0 – 4.00 6.00 11.00 55.0 4 – – C2474.5 – 4.50 6.00 11.00 55.0 4 – – C2473/16 2) 3/16 4.76 6.00 13.00 57.0 4 – – C2475.0 – 5.00 6.00 13.00 57.0 4 – – C2475.5 – 5.50 6.00 13.00 57.0 4 – – C2476.0 – 6.00 6.00 13.00 57.0 4 – – C2471/4 2) 1/4 6.35 10.00 16.00 66.0 4 – – C2476.5 – 6.50 10.00 16.00 66.0 4 – – C2477.0 – 7.00 10.00 16.00 66.0 4 – – C2477.5 – 7.50 10.00 16.00 66.0 4 – – C2475/16 2) 5/16 7.94 10.00 19.00 69.0 4 – – C2478.0 – 8.00 10.00 19.00 69.0 4 – – C2478.5 – 8.50 10.00 19.00 69.0 4 – – C2479.0 – 9.00 10.00 19.00 69.0 4 – – C2479.5 – 9.50 10.00 19.00 69.0 4 – – C2473/8 2) 3/8 9.52 10.00 22.00 72.0 4 31.50 9.50 C24710.0 – 10.00 10.00 22.00 72.0 4 31.50 9.50 C24711.0 – 11.00 12.00 22.00 79.0 4 – – C24712.0 – 12.00 12.00 26.00 83.0 4 37.50 11.50 C2471/2 2) 1/2 12.70 12.00 26.00 83.0 4 37.50 11.50 149