GITM (full radius) : CBN tipped inserts for turning and grooving on hard ferrous materials. Used for finishing hard ferrous materials with 45-65 HRc, dry cutting recommended for interrupted cut.
Hard Materials
  DesignationW±0.02R±0.05MD1 minap
(min)
ap
(max)
ft
(min)
ft
(max)
fg
(min)
fg
(max)
GICATGIREMgiicTough ‹————› Hard
Grade & Vc
  GITM 3.00K-1.50 3.001.502.40160.00.000.300.030.100.020.066404167 3IB20H IB50 IB10H 
  GITM 4.00K-2.00 4.002.003.20160.00.000.400.040.140.020.096404171 3IB20H IB50 IB10H 
  GITM 5.00K-2.50 5.002.503.90160.00.000.500.050.180.030.116404175 3IB20H IB50 IB10H 
  GITM 6.00K-3.00 6.003.005.00160.00.000.600.060.220.040.136404179 3IB20H IB50 IB10H 
  GITM 8.00K-4.00 8.004.005.60160.00.000.800.080.290.050.176411195 1IB50 

Dmin for internal machining = 70 mm

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