5pcs 12mm indexable boring bar set

1. The set contains 5pcs 12mm shank boring bars as following: 

    The inserts are fitted on the boring bars before shipment.

1) D12-70L. It use CCMT060204-VP15TF inserts.

2) D12-80L.  It use CCMT060204-VP15TF inserts.

3) D12-90L.  It use TCMT110204-VP15TF inserts.

4) D12-110L. It use TCMT110204-VP15TF inserts.

5) XD12-90L. It use TCMT110204-VP15TF inserts.

2. It use with replaceable inserts. So that it can use long life.