TPGB Carbide Inserts for Boring Bars | 
TPGB Carbide Inserts for our BBU- series of indexable boring bars.   
For machining short-chip materials: this insert is without a chipbreaker. 
C2 for cast, non-ferrous metals, general purpose. 
C5/C6 for machining steel. 
TNC: Coated C5/C6 for wear/heat resistance. 
 
The I.C. dimension is the diameter of a circle that could be drawn within a triangular insert, touching the midpoint of each side.
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| 
Quantity 
 | 
Price 
 | 
Model 
 | 
Description 
 | 
Radius | 
I.C. | 
 
  | 
$8.80  | CI-TPGB-221-C2
  | TPGB-221 Grade C2 Carbide Boring Insert  | 1/64" | 
1/4" | 
 
  | 
$8.80  | CI-TPGB-221-C5
  | TPGB-221 Grade C5/C6 Carbide Boring Insert  | 1/64" | 
1/4" | 
 
  | 
$9.70  | CI-TPGB-221-TNC
  | TPGB-221 Grade TNC (TiN Coated) Carbide Boring Insert  | 1/64" | 
1/4" | 
 
  | 
$8.80  | CI-TPGB-222-C2
  | TPGB-222 Grade C2 Carbide Boring Insert  | 1/32" | 
1/4" | 
 
  | 
$8.80  | CI-TPGB-222-C5
  | TPGB-222 Grade C5/C6 Carbide Boring Insert  | 1/32" | 
1/4" | 
 
  | 
$9.70  | CI-TPGB-222-TNC
  | TPGB-222 Grade TNC (TiN Coated) Carbide Boring Insert  | 1/32" | 
1/4" | 
 
  | 
$8.80  | CI-TPGB-321-C2
  | TPGB-321 Grade C2 Carbide Boring Insert, 1082-0075  | 1/64" | 
3/8" | 
 
  | 
$8.80  | CI-TPGB-321-C5
  | TPGB-321 Grade C5/C6 Carbide Boring Insert, 1082-0080  | 1/64" | 
3/8" | 
 
  | 
$9.70  | CI-TPGB-321-TNC
  | TPGB-321 Grade TNC (TiN Coated) Carbide Boring Insert  | 1/64" | 
3/8" | 
 
  | 
$8.80  | CI-TPGB-322-C2
  | TPGB-322 Grade C2 Carbide Boring Insert, 1082-0085  | 1/32" | 
3/8" | 
 
  | 
$8.80  | CI-TPGB-322-C5
  | TPGB-322 Grade C5/C6 Carbide Boring Insert, 1082-0090  | 1/32" | 
3/8" | 
 
  | 
$9.70  | CI-TPGB-322-TNC
  | TPGB-322 Grade TNC (TiN Coated) Carbide Boring Insert  | 1/32" | 
3/8" |