Top Notch™ Boring Bars

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    Workpiece Material
    Workpiece Material
    • P Steel (42)
      • P0
        Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(42)
      • P1
        Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(42)
      • P2
        Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(42)
      • P3
        Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(42)
      • P4
        Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(42)
      • P5
        Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(42)
      • P6
        High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(42)
    • M Stainless Steel (42)
      • M1
        Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(42)
      • M2
        High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(42)
      • M3
        Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(42)
    • K Cast Iron (42)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(42)
      • K2
        Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(42)
      • K3
        High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(42)
    • N Non-Ferrous Materials (42)
      • N1
        Wrought Aluminum (42)
      • N2
        Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(42)
      • N3
        High-Silicon Aluminum Alloys Si >12.2%(41)
      • N4
        Copper, Brass, Zinc-based on machinability index range of 70-100 (42)
      • N5
        Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (42)
      • N6
        Carbon, Graphite Composites, CFRP (42)
      • N7
        MMC's (41)
    • S High-Temp Alloys (42)
      • S1
        Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(42)
      • S2
        Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(42)
      • S3
        Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(42)
      • S4
        Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(42)
    • H Hardened Materials (16)
      • H1
        Hardened Materials 44-48 HRC(16)
      • H2
        Hardened Materials 48-55 HRC(16)
    • C CFRP Materials (42)
      • C1
        CFRP, CFRP / CFRP (42)
      • C2
        CFRP / Aluminium CFRP / Non-Ferrous (41)
    Applications
    Applications
    • Face GroovingFace Grooving (7)
    • FacingFacing (6)
    • ID FacingID Facing (6)
    • Multiple Direction CuttingMultiple Direction Cutting (42)
    • ProfilingProfiling (6)
    • TRN BoringTRN Boring (6)
    • TurningTurning (6)
    Cutting Condition
    Cutting Condition
    • Heavily Interrupted Cut (41)
    • Lightly Interrupted Cut (42)
    • Smooth Cut (42)
    • Varying Depth of Cut (42)
    Tool Cutting Edge Angle
    Tool Cutting Edge Angle
    • 93.0 (1)
    • 95.0 (28)
    • 100.0 (1)
    • 107.5 (8)
    • 117.5 (4)
    Tool Cutting Edge Angle MintoTool Cutting Edge Angle Max
    Over All Length [L]
    Over All Length [L]
    • 5.906 in(4)
    • 7.087 in(2)
    • 7.263 in(2)
    • 7.875 in(2)
    • 8.0 in(2)
    • 8.055 in(1)
    • 8.132 in(2)
    • 8.15 in(1)
    • 9.843 in(4)
    • 10.0 in(7)
    • 10.063 in(2)
    • 10.095 in(2)
    • 11.811 in(2)
    • 12.0 in(5)
    • 13.781 in(1)
    • 14.0 in(2)
    • 14.07 in(1)
    Over All Length [L] MintoOver All Length [L] Max
    Over All Length [L]
    Over All Length [L]
    • 150.0 mm(4)
    • 180.0 mm(2)
    • 184.451 mm(2)
    • 200.0 mm(2)
    • 203.201 mm(2)
    • 204.601 mm(1)
    • 206.55 mm(2)
    • 207.0 mm(1)
    • 250.0 mm(4)
    • 254.0 mm(7)
    • 255.601 mm(2)
    • 256.401 mm(2)
    • 300.0 mm(2)
    • 304.8 mm(5)
    • 350.0 mm(1)
    • 355.6 mm(2)
    • 357.375 mm(1)
    Over All Length [L] MintoOver All Length [L] Max
    Corner configuration
    Corner Radius
    Corner Radius
    • 0.005 in(33)
    • 0.008 in(42)
    • 0.016 in(42)
    • 0.02 in(33)
    • 0.031 in(42)
    • 0.039 in(33)
    • 0.047 in(8)
    • 0.063 in(8)
    Corner Radius MintoCorner Radius Max
    Corner Radius
    Corner Radius
    • 0.125 mm(33)
    • 0.2 mm(42)
    • 0.4 mm(42)
    • 0.5 mm(33)
    • 0.8 mm(42)
    • 1.0 mm(33)
    • 1.201 mm(8)
    • 1.6 mm(8)
    Corner Radius MintoCorner Radius Max
    Application
    Minimum Depth of Cut
    Minimum Depth of Cut
    Minimum Feed
    Minimum Feed
    Grade Of Cutting Tool
    Grade Of Cutting Tool
    • K00326 (8)
    • K313 (41)
    • K420 (33)
    • K68 (41)
    • K8735 (8)
    • KB1345 (17)
    • KC250 (41)
    • KC5010 (42)
    • KC5025 (42)
    • KC5410 (41)
    • KC720 (8)
    • KC730 (41)
    • KC7310 (41)
    • KC732 (41)
    • KC8050 (42)
    • KC810 (42)
    • KC850 (42)
    • KC9025 (41)
    • KC910 (41)
    • KC9105 (24)
    • KC9110 (42)
    • KC9120 (8)
    • KC9125 (42)
    • KC9225 (42)
    • KC9315 (41)
    • KC935 (41)
    • KC950 (41)
    • KCD25 (8)
    • KCK05 (8)
    • KCK15B (8)
    • KCM15B (25)
    • KCM25 (42)
    • KCP05 (42)
    • KCP10 (42)
    • KCP10B (41)
    • KCP25 (42)
    • KCP25B (41)
    • KCP25C (42)
    • KCS10B (8)
    • KCU10 (42)
    • KCU10B (42)
    • KCU25 (42)
    • KCU25B (42)
    • KD050 (41)
    • KD081 (8)
    • KD100 (41)
    • KD120 (41)
    • KD1425 (41)
    • KS15 (8)
    • KT125 (41)
    • KT150 (41)
    • KT175 (33)
    • KT315 (42)
    Hand Of Tool
    Hand Of Tool
    • L (16)
    • R (26)
    F Dimension
    F Dimension
    • 8.875 mm(2)
    • 9.0 mm(2)
    • 9.4 mm(2)
    • 9.525 mm(3)
    • 10.875 mm(1)
    • 11.0 mm(2)
    • 12.576 mm(4)
    • 13.0 mm(2)
    • 14.275 mm(6)
    • 15.875 mm(1)
    • 16.0 mm(2)
    • 17.0 mm(1)
    • 18.925 mm(2)
    • 19.05 mm(3)
    • 19.425 mm(1)
    • 22.0 mm(4)
    • 27.0 mm(1)
    • 28.451 mm(1)
    • 31.75 mm(1)
    • 35.0 mm(1)
    F Dimension MintoF Dimension Max
    F Dimension
    F Dimension
    • 0.35 in(2)
    • 0.354 in(2)
    • 0.37 in(2)
    • 0.375 in(3)
    • 0.428 in(1)
    • 0.433 in(2)
    • 0.495 in(4)
    • 0.512 in(2)
    • 0.562 in(6)
    • 0.625 in(1)
    • 0.63 in(2)
    • 0.669 in(1)
    • 0.745 in(2)
    • 0.75 in(3)
    • 0.765 in(1)
    • 0.866 in(4)
    • 1.063 in(1)
    • 1.12 in(1)
    • 1.25 in(1)
    • 1.379 in(1)
    F Dimension MintoF Dimension Max
    Minimum Axial Groove Diameter
    Minimum Axial Groove Diameter
    • 16.0 mm(4)
    • 16.776 mm(2)
    • 17.026 mm(2)
    • 19.05 mm(1)
    • 20.0 mm(3)
    • 22.85 mm(4)
    • 24.901 mm(6)
    • 25.0 mm(2)
    • 26.925 mm(1)
    • 32.0 mm(3)
    • 33.025 mm(5)
    • 40.0 mm(4)
    • 45.051 mm(1)
    • 46.475 mm(1)
    • 50.0 mm(1)
    • 53.85 mm(1)
    • 63.0 mm(1)
    Minimum Axial Groove Diameter MintoMinimum Axial Groove Diameter Max
    Minimum Axial Groove Diameter
    Minimum Axial Groove Diameter
    • 0.63 in(4)
    • 0.66 in(2)
    • 0.67 in(2)
    • 0.75 in(1)
    • 0.787 in(3)
    • 0.9 in(4)
    • 0.98 in(6)
    • 0.984 in(2)
    • 1.06 in(1)
    • 1.26 in(3)
    • 1.3 in(5)
    • 1.575 in(4)
    • 1.774 in(1)
    • 1.83 in(1)
    • 1.969 in(1)
    • 2.12 in(1)
    • 2.48 in(1)
    Minimum Axial Groove Diameter MintoMinimum Axial Groove Diameter Max
    Cutting Direction
    Cutting Direction
    • B (26)
    • E (13)
    • P (2)
    • S (1)
    Maximum Bore Depth
    Maximum Bore Depth
    • 1.891 in(2)
    • 2.0 in(2)
    • 2.5 in(2)
    • 2.52 in(2)
    • 2.835 in(2)
    • 3.0 in(8)
    • 3.15 in(2)
    • 3.75 in(2)
    • 3.781 in(1)
    • 3.938 in(3)
    • 4.0 in(5)
    • 4.5 in(2)
    • 4.992 in(1)
    • 5.0 in(1)
    • 5.039 in(4)
    • 6.0 in(1)
    • 6.299 in(1)
    • 7.875 in(1)
    Maximum Bore Depth MintoMaximum Bore Depth Max
    Maximum Bore Depth
    Maximum Bore Depth
    • 48.0 mm(2)
    • 50.801 mm(2)
    • 63.5 mm(2)
    • 64.0 mm(2)
    • 72.0 mm(2)
    • 76.2 mm(8)
    • 80.0 mm(2)
    • 95.25 mm(2)
    • 96.0 mm(1)
    • 100.0 mm(3)
    • 101.601 mm(5)
    • 114.301 mm(2)
    • 126.801 mm(1)
    • 127.0 mm(1)
    • 128.0 mm(4)
    • 152.4 mm(1)
    • 160.0 mm(1)
    • 200.0 mm(1)
    Maximum Bore Depth MintoMaximum Bore Depth Max
    Boring Bar Material
    Boring Bar Material
    • C (10)
    • S (32)
    Front-End
    Insert Shape
    Insert Shape
    • K-PARALLELOGRAM 55 (4)
    • N/K-PARALLELOGRAM 55 (29)
    • V-DIAMOND/RHOMBIC 35 (9)
    Maximum Cutting Depth
    Maximum Cutting Depth
    • 0.116 in(2)
    • 0.121 in(1)
    • 0.185 in(1)
    • 0.244 in(1)
    Maximum Cutting Depth MintoMaximum Cutting Depth Max
    Maximum Cutting Depth
    Maximum Cutting Depth
    • 2.95 mm(2)
    • 3.075 mm(1)
    • 4.7 mm(1)
    • 6.2 mm(1)
    Maximum Cutting Depth MintoMaximum Cutting Depth Max
    Insert Geometry
    Cutting Tool Material
    Cutting Tool Material
    • B H (41)
    • B L (41)
    • D P (41)
    • H T (42)
    • H W (42)
    Back-End
    Back-End Diameter
    Back-End Diameter
    • 12.0 mm(4)
    • 12.701 mm(5)
    • 15.875 mm(4)
    • 16.0 mm(3)
    • 19.05 mm(7)
    • 20.0 mm(2)
    • 25.0 mm(3)
    • 25.401 mm(5)
    • 31.701 mm(1)
    • 31.75 mm(1)
    • 32.0 mm(4)
    • 38.1 mm(1)
    • 40.0 mm(1)
    • 50.0 mm(1)
    Back-End Diameter MintoBack-End Diameter Max
    Back-End Diameter
    Back-End Diameter
    • 0.473 in(4)
    • 0.5 in(5)
    • 0.625 in(4)
    • 0.63 in(3)
    • 0.75 in(7)
    • 0.787 in(2)
    • 0.984 in(3)
    • 1.0 in(5)
    • 1.248 in(1)
    • 1.25 in(1)
    • 1.26 in(4)
    • 1.5 in(1)
    • 1.575 in(1)
    • 1.969 in(1)
    Back-End Diameter MintoBack-End Diameter Max
    Shank Height
    Shank Height
    • 0.449 in(2)
    • 0.606 in(1)
    • 0.939 in(3)
    • 1.214 in(4)
    • 1.53 in(1)
    • 1.848 in(1)
    Shank Height MintoShank Height Max
    Shank Height
    Shank Height
    • 11.4 mm(2)
    • 15.4 mm(1)
    • 23.826 mm(3)
    • 30.826 mm(4)
    • 38.825 mm(1)
    • 46.95 mm(1)
    Shank Height MintoShank Height Max
    Shank Width
    Shank Width
    • 0.864 in(3)
    • 1.141 in(4)
    • 1.455 in(1)
    • 1.848 in(1)
    Shank Width MintoShank Width Max
    Shank Width
    Shank Width
    • 21.951 mm(3)
    • 28.951 mm(4)
    • 36.95 mm(1)
    • 46.95 mm(1)
    Shank Width MintoShank Width Max
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