Use a Steel Boring Bar if you are reaching less than 4X Length to Diameter.  Use a Carbide Boring Bar is you are reaching between 4X to 8X Length to Diameter or if finish is critical. Also, if you have Coolant Thru use it whenever possible. Use Filters on Left to Narrow Down Boring Bar that is the Best Fit for Your Application.

Kyocera A12QPCLNR3 Right-Hand, Negative Rake, Coolant-Through Boring Bar
Kyocera A12QPCLNR3 Right-Hand, Negative Rake, Coolant-Through Boring Bar $ 284.89 $ 356.11

Kyocera A12QPCLNR3 Right-Hand, Negative Rake, General Purpose Coolant-Through Boring Bar with 95 Degree Lead Angle and 1.0600" Minimum Bore Dia.

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Kyocera S05KSTUPR15 Right-Hand, Positive Rake, Boring Bar
Kyocera S05KSTUPR15 Right-Hand, Positive Rake, Boring Bar $ 140.19 $ 175.24

Kyocera S05KSTUPR15 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.3920" Minimum Bore Dia.

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Kyocera S10XSDZCR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S10XSDZCR2 Right-Hand, Positive Rake, Boring Bar $ 264.44 $ 330.55

Kyocera S10XSDZCR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.6300" Minimum Bore Dia.

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Kyocera S06MSCLPR25 Right-Hand, Positive Rake, Boring Bar
Kyocera S06MSCLPR25 Right-Hand, Positive Rake, Boring Bar $ 136.87 $ 171.09

Kyocera S06MSCLPR25 Right-Hand, Positive Rake, General Purpose Boring Bar with 95 Degree Lead Angle and 0.4720" Minimum Bore Dia.

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