GTGN : Shallow grooving inserts for threading toolholders
Right hand (R) shown.
  DesignationStockHANDSizeCWCDXREICtGICATGIREMgiicGrade
  GTGN-16ER/IL100 AvailableR 16.039.049.0039.375.1666879512 1SH730 
  GTGN-16EL/IR100 AvailableL 16.039.049.0039.375.1666879505 1SH730 
  GTGN-16ER/IL120 AvailableR 16.047.051.0039.375.1626879513 1SH730 
  GTGN-16EL/IR120 AvailableL 16.047.051.0039.375.1626879507 1SH730 
  GTGN-16ER/IL140 AvailableR 16.055.059.0039.375.1586879514 1SH730 
  GTGN-16EL/IR140 AvailableL 16.055.059.0039.375.1586879508 1SH730 
  GTGN-16ER/IL170 AvailableR 16.067.067.0039.375.1446879515 1SH730 
  GTGN-16EL/IR170 AvailableL 16.067.067.0039.375.1446879509 1SH730 
  GTGN-16ER/IL195 AvailableR 16.077.067.0039.375.1486879516 1SH730 
  GTGN-16EL/IR195 AvailableL 16.077.067.0039.375.1486879510 1SH730 
  GTGN-16ER/IL225 AvailableR 16.089.071.0039.375.1426879517 1SH730 
  GTGN-16EL/IR225 AvailableL 16.089.071.0039.375.1426879511 1SH730 

GTGN insert is applicable for both external and internal grooving, but the hand of tool is opposite in external and internal machining.
It's necessary to exchange the shim sheet for grooving.

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