Item Number: 6-871-525

4 Piece Non Coolant Through Boring Bar Set for CCMT 21.51 Inserts 5/16"-5/8"..... Uses screw 6-998-4110. Bars NOT available separately
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Pieces in Set 4 boring bars, 1 torx key
Boring bars included .315, 3/8, 1/2, 5/8
Inserts included (CCMT 21.51) none
Torx keys included 1