DC DCON MS 9 S218 4-Flute Solid Carbide End Mill, Extra Long Series Extra long cut length, 4-flute design provides high rigidity for profile milling extra deep walls. AlTiN coating increases tool life and improves performance when milling difficult to machine materials. The 40° helix is designed for high performance machining. N NOF4 APMX l g OAL 40° 3° 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. P4.3 M2.3 M3.3 M4.1 M4.2 S1.3 S2.2 S3.2 S4.2 40 J 40 J 41 I 40 I 34 I 29 I 24 I 17 I 14 I DCON MS tolerance h6. Product DC DCON MS APMX OAL NOF [mm] [mm] [mm] [mm] S2183.0 3.00 3.00 25.00 100.0 4 S2184.0 4.00 4.00 31.00 100.0 4 S2185.0 5.00 5.00 31.00 100.0 4 S2186.0 6.00 6.00 38.00 100.0 4 S2188.0 8.00 8.00 41.00 100.0 4 S21810.0 10.00 10.00 57.00 125.0 4 S21812.0 12.00 12.00 75.00 150.0 4 S21814.0 14.00 14.00 75.00 150.0 4 S21816.0 16.00 16.00 75.00 150.0 4 S21818.0 18.00 18.00 75.00 150.0 4 S21820.0 20.00 20.00 75.00 150.0 4 52