TAG N-C/W/M : First choice for the parting of bars, hard materials and tough applications. A positive rake, single cavity (except 7 & 12 mm with double cavity), negative land and shoulders, provides extra cutting-edge strength. Medium-to-high feeds.
  DesignationWW±tolerR±0.04fg
(min)
fg
(max)
GICATGIREMgiicTough ‹————› Hard
Grade & Vc
  TAG N1.4C 1.400.050.160.040.106003646 1IC807 
  TAG N1.6C 1.600.050.160.040.146011462 2IC830 IC808 
  TAG N2C 2.000.050.200.050.166080559 5IC830 IC5400 IC808 IC30N IC20 
  TAG N2.4C 2.400.040.160.060.186004486 2IC830 IC808 
  TAG N3CB   3.000.050.350.120.306004484 Larger corner radii for interrupted cut and high feed applications. 2IC830 IC808 
  TAG N3C 3.050.050.200.100.256096839 8IC830 IC928 IC5400 IC808 IC908 IC30N IC807 IC20 
  TAG N3M   3.050.050.200.060.186004545 Similar to C-type, but with a modified edge. Improved chip control at medium feeds. 2IC830 IC908 
  TAG N3W 3.050.050.200.100.256004549 2IC830 IC908 
  TAG N4C 4.000.050.240.100.306095929 7IC830 IC928 IC5400 IC808 IC908 IC807 IC20 
  TAG N4CB   4.000.050.400.100.336004554 Larger corner radii for interrupted cut and high feed applications. 2IC830 IC908 
  TAG N4M   4.000.050.240.060.206004543 Similar to C-type, but with a modified edge. Improved chip control at medium feeds. 2IC830 IC908 
  TAG N4W 4.000.050.240.100.306004547 2IC830 IC908 
  TAG N4.8C 4.800.050.300.100.356004488 2IC830 IC808 
  TAG N5C 5.050.050.250.100.356011426 3IC830 IC808 IC20 
  TAG N6.3C 6.300.100.350.150.406011430 2IC830 IC808 
  TAG N7W 7.000.100.500.180.406003624 2IC830 IC808 
  TAG N8C 8.000.100.500.200.706003616 2IC830 IC808 
  TAG N9.5C 9.500.100.500.250.806011452 2IC830 IC808 
  TAG N9.5W 9.500.100.500.220.806004490 2IC830 IC808 
  TAG N12.7W 12.700.100.850.300.806011448 2IC830 IC808 

The feed values for grade IC20 should be decreased by 50%.

For cutting speed recommendations, click on the required grade number related to specific item geometry