DGN/DGNC/DGNM-C :  Used for parting of bars, hard materials and tough applications. A positive rake, single cavity with a negative land and shoulders. Medium-to-high feeds. DGNC - with coolant holes, DGNM - single ended for very deep applications.  
 
 
Parting Ext. Grooving Face Grooving Face Grving Along Shaft Int. Face Grooving
  Designation
W
W±toler
R
Tmax-r		 l
Ref.		 fg
(min)		 fg
(max)
  Grade
  DGN 2002C  2.00  0.03  0.20  18.00  19.9  0.05  0.16 IC328 IC830 IC1028 IC354 IC5400 IC808 IC908 IC20
  DGN 2202C  2.20  0.03  0.20  18.00  19.8  0.05  0.16 IC328 IC830 IC1028 IC354 IC5400 IC308 IC808 IC908 IC30N IC907 IC20
  DGN 2502C  2.50  0.03  0.20  18.00  20.7  0.08  0.20 IC908
  DGN 3102C  3.10  0.04  0.20  18.00  20.1  0.10  0.25 IC328 IC830 IC1028 IC354 IC5400 IC308 IC808 IC908 IC30N IC907 IC20
  DGNC 3102C  3.10  0.04  0.20  18.00  21.0  0.10  0.25 IC808 IC908
  DGNM 3202C  3.18  0.04  0.20  -No depth limit  20.4  0.10  0.25 IC328 IC354 IC908
  DGN 4003C  4.00  0.04  0.30  -No depth limit  18.8  0.10  0.30 IC328 IC830 IC1028 IC354 IC308 IC808 IC908 IC30N IC807 IC20
  DGNC 4003C  4.00  0.04  0.30  -No depth limit  19.0  0.10  0.30 IC808 IC908
  DGN 4803C  4.80  0.04  0.30  -No depth limit  19.9  0.12  0.35 IC328
  DGN 5003C  5.00  0.04  0.30  -No depth limit  19.1  0.12  0.35 IC328 IC830 IC1028 IC354 IC808 IC908 IC30N IC20
  DGN 6303C  6.35  0.04  0.35  -No depth limit  19.1  0.15  0.40 IC328 IC830 IC1028 IC354 IC808 IC908 IC20

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