GIM-W :  Parting & grooving single-sided insert. W-type chipformer, with a central ridge that forms double cavities on the rake face. Most efficient on alloy steel.  
 
 
Slitting   Ext. Grooving   Int. Grooving   Parting  
  Designation
W±0.05

R±0.02

M
D1
min
fg
(min)
fg
(max)

  Grade
  GIM 3  3.00  0.25  2.4  160.0  0.10  0.18 IC328 IC54 IC354 IC908 IC20
  GIM 3.2  3.20  0.22  2.4  160.0  0.10  0.20 IC656 IC328 IC54 IC354 IC908 IC20
  GIM 4  4.00  0.25  3.2  160.0  0.15  0.20 IC656 IC328 IC54 IC354 IC908 IC20

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