CGHN-D :  Double-ended blades for external grooving and turning.  
 
 
Ext. Grooving Parting Ext. Grooving & Turning Ext. Profiling Threading (Ext.)
  Designation
B1		 W
min		 W
max		 T
blmin		 T
blade
h1
l1
A
  CGHN 26-3D  26.0  2.80  4.00  10.0  15.0  21.4  110.00  2.40
  CGHN 26-4D  26.0  3.50  4.50  10.0  15.0  21.4  110.00  3.20
  CGHN 26-5D  26.0  4.40  6.40  10.0  20.0  21.4  110.00  4.00
  CGHN 32-3D  32.0  2.80  4.00  10.0  19.0  24.8  150.00  2.40
  CGHN 32-4D  32.0  3.50  5.00  12.0  21.0  24.8  150.00  3.20
  CGHN 32-5D  32.0  4.40  6.40  12.0  26.0  24.8  150.00  4.00
  CGHN 32-6D  32.0  5.50  6.40  12.0  26.0  24.8  150.00  5.20

Use the yellow lines on blade for min. and max. overhang.
For using TIP inserts, toolholder seat needs to be modified according to insert profile to ensure clearance.
When using a double-ended insert, grooving depth is limited by the insert.
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