9 C920 Multi-Flute HSS-E-PM Long Series End Mill, Alcrona Coating Long cut length, 3, 4 or 5 flute design for high rigidity finishing deep profiles. With a 45° helix and designed for machining higher strength materials. Neck recess on cutting diameter equal to 10 mm and above to avoid work contact with the wall and extend reach. Alcrona coating extends the tool life. HSS-EPM N NOF3-5 l g 45° 12° DC Alcrona 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. 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 85 C 75 B 74 C 59 B 50 B 44 B 37 B 31 B 62 C 52 C 55 C 45 B 41 B 35 B 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 32 A 25 A 55 C 41 C 31 C 98 C 80 C 64 B 87 C 67 C 54 A 81 B 61 B 45 B 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 38 A 32 A 91 B 69 B 53 B 83 C 49 C 40 B 35 B 15 A 33 A 14 A 25 A 10 A S4.1 S4.2 20 A 8A DCON MS tolerance h6. Product DC DCON MS APMX OAL NOF LU DN [mm] [mm] [mm] [mm] [mm] [mm] C9206.0 6.00 6.00 24.00 68.0 3 – – C9208.0 8.00 10.00 38.00 88.0 4 – – C92010.0 10.00 10.00 45.00 95.0 4 54.50 9.50 C92012.0 12.00 12.00 53.00 110.0 4 64.50 11.50 C92014.0 14.00 12.00 53.00 110.0 4 64.50 11.50 C92016.0 16.00 16.00 63.00 123.0 4 74.50 15.50 C92018.0 18.00 16.00 63.00 123.0 4 74.50 15.50 C92020.0 20.00 20.00 75.00 141.0 4 90.50 19.50 C92022.0 22.00 20.00 75.00 141.0 5 90.50 19.50 C92025.0 25.00 25.00 90.00 166.0 5 109.50 24.50 148