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 $ 242.04 $ 302.55

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 S06XSWUBR15 Right-Hand, Positive Rake, Boring Bar
Kyocera S06XSWUBR15 Right-Hand, Positive Rake, Boring Bar $ 133.43 $ 166.79

Kyocera S06XSWUBR15 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.3120" Minimum Bore Dia.

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Kyocera S06HSWUBR12 Right-Hand, Positive Rake, Boring Bar
Kyocera S06HSWUBR12 Right-Hand, Positive Rake, Boring Bar $ 123.03 $ 153.79

Kyocera S06HSWUBR12 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.2400" Minimum Bore Dia.

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Kyocera S06HSWUBL12 Left-Hand, Positive Rake, Boring Bar
Kyocera S06HSWUBL12 Left-Hand, Positive Rake, Boring Bar $ 123.03 $ 153.79

Kyocera S06HSWUBL12 Left-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.2400" Minimum Bore Dia.

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Kyocera S08MSTUPR18 Right-Hand, Positive Rake, Boring Bar
Kyocera S08MSTUPR18 Right-Hand, Positive Rake, Boring Bar $ 137.04 $ 171.30

Kyocera S08MSTUPR18 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.6300" Minimum Bore Dia.

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Kyocera S06MSTUPR18 Right-Hand, Positive Rake, Boring Bar
Kyocera S06MSTUPR18 Right-Hand, Positive Rake, Boring Bar $ 128.34 $ 160.42

Kyocera S06MSTUPR18 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.4720" Minimum Bore Dia.

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Kyocera S05KSTUPR15 Right-Hand, Positive Rake, Boring Bar
Kyocera S05KSTUPR15 Right-Hand, Positive Rake, Boring Bar $ 119.11 $ 148.89

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 S04HSTUBR12 Right-Hand, Positive Rake, Boring Bar
Kyocera S04HSTUBR12 Right-Hand, Positive Rake, Boring Bar $ 123.03 $ 153.79

Kyocera S04HSTUBR12 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.3120" Minimum Bore Dia.

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Kyocera S12RSTUPR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S12RSTUPR2 Right-Hand, Positive Rake, Boring Bar $ 158.57 $ 198.21

Kyocera S12RSTUPR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.9120" Minimum Bore Dia.

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Kyocera S10XSTUPR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S10XSTUPR2 Right-Hand, Positive Rake, Boring Bar $ 144.40 $ 180.50

Kyocera S10XSTUPR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.7870" Minimum Bore Dia.

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Kyocera S06MSTUPL18 Left-Hand, Positive Rake, Boring Bar
Kyocera S06MSTUPL18 Left-Hand, Positive Rake, Boring Bar $ 128.34 $ 160.42

Kyocera S06MSTUPL18 Left-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.4720" Minimum Bore Dia.

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Kyocera S12RSTUPL2 Left-Hand, Positive Rake, Boring Bar
Kyocera S12RSTUPL2 Left-Hand, Positive Rake, Boring Bar $ 158.57 $ 198.21

Kyocera S12RSTUPL2 Left-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.9120" Minimum Bore Dia.

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Kyocera S10XSTUPL2 Left-Hand, Positive Rake, Boring Bar
Kyocera S10XSTUPL2 Left-Hand, Positive Rake, Boring Bar $ 144.40 $ 180.50

Kyocera S10XSTUPL2 Left-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.7870" Minimum Bore Dia.

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Kyocera S16XSDZCR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S16XSDZCR3 Right-Hand, Positive Rake, Boring Bar $ 259.63 $ 324.54

Kyocera S16XSDZCR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.9840" Minimum Bore Dia.

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Kyocera S12RSDZCR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S12RSDZCR3 Right-Hand, Positive Rake, Boring Bar $ 238.80 $ 298.50

Kyocera S12RSDZCR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.7870" Minimum Bore Dia.

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Kyocera S10XSDZCR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S10XSDZCR2 Right-Hand, Positive Rake, Boring Bar $ 224.69 $ 280.86

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 S08MSDUCR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S08MSDUCR2 Right-Hand, Positive Rake, Boring Bar $ 129.29 $ 161.61

Kyocera S08MSDUCR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 107.5 Degree Lead Angle and 0.5640" Minimum Bore Dia.

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Kyocera S10XSDZCL2 Left-Hand, Positive Rake, Boring Bar
Kyocera S10XSDZCL2 Left-Hand, Positive Rake, Boring Bar $ 224.69 $ 280.86

Kyocera S10XSDZCL2 Left-Hand, Positive Rake, General Purpose Boring Bar with 93 Degree Lead Angle and 0.6300" Minimum Bore Dia.

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Kyocera S12RSDUCR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S12RSDUCR3 Right-Hand, Positive Rake, Boring Bar $ 160.41 $ 200.51

Kyocera S12RSDUCR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 107.5 Degree Lead Angle and 0.7500" Minimum Bore Dia.

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Kyocera S10XSDUCR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S10XSDUCR2 Right-Hand, Positive Rake, Boring Bar $ 151.21 $ 189.01

Kyocera S10XSDUCR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 107.5 Degree Lead Angle and 0.5640" Minimum Bore Dia.

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Kyocera S12RSDUCL3 Left-Hand, Positive Rake, Boring Bar
Kyocera S12RSDUCL3 Left-Hand, Positive Rake, Boring Bar $ 160.41 $ 200.51

Kyocera S12RSDUCL3 Left-Hand, Positive Rake, General Purpose Boring Bar with 107.5 Degree Lead Angle and 0.7500" Minimum Bore Dia.

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Kyocera S10XSDUCL2 Left-Hand, Positive Rake, Boring Bar
Kyocera S10XSDUCL2 Left-Hand, Positive Rake, Boring Bar $ 151.21 $ 189.01

Kyocera S10XSDUCL2 Left-Hand, Positive Rake, General Purpose Boring Bar with 107.5 Degree Lead Angle and 0.5640" Minimum Bore Dia.

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Kyocera S08MSCLPR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S08MSCLPR3 Right-Hand, Positive Rake, Boring Bar $ 118.66 $ 148.32

Kyocera S08MSCLPR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 95 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 $ 116.30 $ 145.38

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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Kyocera S05KSCLCR2 Right-Hand, Positive Rake, Boring Bar
Kyocera S05KSCLCR2 Right-Hand, Positive Rake, Boring Bar $ 123.03 $ 153.79

Kyocera S05KSCLCR2 Right-Hand, Positive Rake, General Purpose Boring Bar with 95 Degree Lead Angle and 0.3940" Minimum Bore Dia.

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Kyocera S16TSCLPR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S16TSCLPR3 Right-Hand, Positive Rake, Boring Bar $ 164.06 $ 205.07

Kyocera S16TSCLPR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 95 Degree Lead Angle and 1.3380" Minimum Bore Dia.

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Kyocera S12RSCLPR3 Right-Hand, Positive Rake, Boring Bar
Kyocera S12RSCLPR3 Right-Hand, Positive Rake, Boring Bar $ 125.76 $ 157.20

Kyocera S12RSCLPR3 Right-Hand, Positive Rake, General Purpose Boring Bar with 95 Degree Lead Angle and 0.9840" Minimum Bore Dia.

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