IR/L-55° : Internal 55° partial profile, laydown threading inserts. IR/L - Ground periphery and rake, IRB - with a chipformer and peripherally ground, IRM - With a chipformer. Application: general industry.
Internal left-hand shown
  DesignationdiPminPmaxTPI maxTPI minlRXYGICATGIREMgiicTough ‹————› Hard
Grade & Vc
  06IL A 55 3.970.501.2548206.000.050.50.65901354 1IC228 
  06IR A 55 3.970.501.2548206.000.050.50.65901353 1IC228 
  08IL A 55 4.760.501.5048168.000.050.60.75901356 1IC228 
  08IR A 55 4.760.501.5048168.000.050.60.75990416 3IC228 IC928 IC908 
  08UIRL U 55 4.761.752.0014118.000.100.94.05901357 1IC228 
  11IL A 55 6.350.501.50481611.000.050.80.95990667 3IC50M IC250 IC908 
  11IR A 55 6.350.501.50481611.000.050.80.95992167 4IC228 IC50M IC250 IC908 
  16IR A 55 9.520.501.50481616.000.050.80.95902521 3IC50M IC250 IC908 
  16IL AG 55 9.520.503.0048816.000.051.21.75902058 2IC50M IC908 
  16IR AG 55 9.520.503.0048816.000.051.21.75901913 5IC228 IC50M IC250 IC508 IC908 
  16IRB AG 55   9.520.503.0048816.000.051.21.75902787 With pressed chipformer 1IC908 
  16IRM AG 55   9.520.503.0048816.000.051.21.75921215 With pressed chipformer 5IC50M IC250 IC808 IC908 IC1007 
  16IL G 55 9.521.753.0014816.000.201.21.75996946 3IC50M IC250 IC908 
  16IR G 55 9.521.753.0014816.000.201.21.75994710 4IC50M IC250 IC508 IC908 
  16IRB G 55   9.521.753.0014816.000.201.21.75902788 With pressed chipformer 1IC908 
  16IRM G 55   9.521.753.0014816.000.201.21.75920087 With pressed chipformer 3IC250 IC808 IC908 
  22IR N 55 12.703.505.007522.000.421.72.55997443 3IC50M IC250 IC908 
  27IR Q 55 15.885.506.004.5427.000.602.02.95992535 3IC50M IC250 IC908 

For insert identification system, click on "More Info".
For threading between walls use GRIP-type inserts TIP-WT, GEPI-WT, TIPI-WT.

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