DC DCON MS 9 S638 2-Flute Solid Carbide End Mill, Extra Long Reach Extra short cut length, 2-flute reduced shank provides clearance when machining against deep walls. The S638, with high hook geometry, is designed for high speed machining in non-ferrous materials. Polished surface prevents workpiece material from sticking to the cutting edge. NOF 2 APMX l g OAL 30° 20° DC DIN 6535HA Hi 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. N1.1 N1.2 N1.3 N2.1 N2.2 N2.3 N3.1 N3.2 N3.3 N4.1 N4.2 709 N 533 N 357 N 357 N 320 N 229 N 373 N 219 N 112 N 373 O 144 O Reduced shank; DCON MS tolerance h6; RE ±0.02 mm. Product DC RE DCON MS APMX OAL NOF [mm] [mm] [mm] [mm] [mm] S6386.2 6.20 0.10 6.00 8.00 100.0 2 S6388.2 8.20 0.10 8.00 10.00 100.0 2 S63810.3 10.30 0.10 10.00 14.00 125.0 2 S63812.3 12.30 0.10 12.00 16.00 125.0 2 S63816.3 16.30 0.10 16.00 20.00 125.0 2 S63820.3 20.30 0.10 20.00 25.00 125.0 2 83