9 C908 Multi-Flute HSS-E-PM Roughing End Mill, Alcrona Coating Short cut length, 4 or 6 flute design with neck recess on big cutting diameter sizes and an NRA profile to break chips for efficient roughing ap- plication. A 35° helix reduces vibration and improves performance in roughing operations. Alcrona coating improves performance and extends the tool life. HSS-E NOF PM 4-6 l g 35° 12° DC Alcrona k12 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. P2.2 P2.3 P3.1 P3.2 P3.3 P4.1 P4.2 P4.3 M1.1 M1.2 M2.1 M2.2 M3.1 M3.2 93 G 82 F 80 G 64 F 54 F 48 F 40 F 33 F 66 G 56 G 59 G 48 F 47 F 40 F M3.3 M4.1 K1.1 K1.2 K1.3 K2.1 K2.2 K2.3 K3.1 K3.2 K3.3 K4.1 K4.2 K4.3 36 E 26 E 61 G 45 G 34 G 108 G 88 G 70 F 96 G 73 G 59 F 89 F 67 F 49 F K4.4 K4.5 K5.1 K5.2 K5.3 N3.1 N3.2 S1.1 S1.2 S1.3 S2.1 S2.2 S3.1 S3.2 42 E 35 E 100 F 76 F 58 F 93 G 55 G 46 F 37 F 16 E 36 E 16 E 27 E 11 E S4.1 S4.2 21 E 9E DCON MS tolerance h6. Product DC DCON MS APMX OAL NOF LU DN [mm] [mm] [mm] [mm] [mm] [mm] C9086.0 6.00 6.00 13.00 57.0 4 – – C9087.0 7.00 10.00 16.00 66.0 4 – – C9088.0 8.00 10.00 19.00 69.0 4 – – C9089.0 9.00 10.00 19.00 69.0 4 – – C90810.0 10.00 10.00 22.00 72.0 4 31.50 9.50 C90811.0 11.00 12.00 22.00 79.0 4 – – C90812.0 12.00 12.00 26.00 83.0 4 37.50 11.50 C90813.0 13.00 12.00 26.00 83.0 4 37.50 11.50 C90814.0 14.00 12.00 26.00 83.0 4 37.50 11.50 C90815.0 15.00 12.00 26.00 83.0 4 37.50 11.50 C90816.0 16.00 16.00 32.00 92.0 4 43.50 15.50 C90818.0 18.00 16.00 32.00 92.0 4 43.50 15.50 C90820.0 20.00 20.00 38.00 104.0 4 53.50 19.50 C90822.0 22.00 20.00 38.00 104.0 4 53.50 19.50 C90825.0 25.00 25.00 45.00 121.0 6 64.50 24.50 C90830.0 30.00 25.00 45.00 121.0 6 64.50 24.50 C90832.0 32.00 32.00 53.00 133.0 6 72.50 31.50 160