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
 
Face Grving Along Shaft Ext. Grooving Ext. Profiling Int. Grooving Int. Profiling
  Designation
W±0.02
R±0.05
M		 D1
min		 ap
(min)		 ap
(max)		 ft
(min)		 ft
(max)		 fg
(min)		 fg
(max)
  Grade
  GITM 3.00K-1.50  3.00  1.50  2.4  160.0  0.00  0.30  0.03  0.10  0.02  0.06 IB20H IB50 IB10H
  GITM 4.00K-2.00  4.00  2.00  3.2  160.0  0.00  0.40  0.04  0.14  0.02  0.09 IB20H IB50 IB10H

Dmin for internal machining = 70 mm
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