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Top Notch™ Boring Bars

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Workpiece Material
Workpiece Material
  • P Steel (63)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (63)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (63)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS (63)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS (63)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS (63)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS (63)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS (63)
  • M Stainless Steel (63)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS (63)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS (63)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS (63)
  • K Cast Iron (63)
    • K1
      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS (63)
    • K2
      Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS (63)
    • K3
      High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS (63)
  • N Non-Ferrous Materials (63)
    • N1
      Wrought Aluminum (63)
    • N2
      Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2% (63)
    • N3
      High-Silicon Aluminum Alloys Si >12.2% (63)
    • N4
      Copper, Brass, Zinc-based on machinability index range of 70-100 (63)
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    • N6
      Carbon, Graphite Composites, CFRP (63)
    • N7
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  • S High-Temp Alloys (63)
    • S1
      Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS (63)
    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS (63)
    • S3
      Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS (63)
    • S4
      Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS (63)
  • H Hardened Materials (63)
    • H1
      Hardened Materials 44-48 HRC (63)
    • H2
      Hardened Materials 48-55 HRC (56)
    • H3
      Hardened Materials 56-60 HRC (33)
    • H4
      Hardened Materials >60 HRC (33)
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Applications
  • Face Grooving Face Grooving (62)
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  • ID Facing ID Facing (7)
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Type of Thread
Type of Thread
  • 60 (61)
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  • M (36)
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  • UNJ (25)
Cutting Condition
Cutting Condition
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Cutting Edges Per Insert
Cutting Edges Per Insert
  • 1.0 (61)
  • 2.0 (58)
Cutting Edges Per Insert Min to Cutting Edges Per Insert Max
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Internal Coolant Capability
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Over All Length [L]
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Over All Length [L] Min to Over All Length [L] Max
Over All Length [L]
Over All Length [L]
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Over All Length [L] Min to Over All Length [L] Max
Corner configuration
Corner Radius
Corner Radius
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Corner Radius Min to Corner Radius Max
Corner Radius
Corner Radius
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  • 0.076 mm (61)
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  • 2.0 mm (33)
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  • 2.5 mm (8)
  • 3.176 mm (8)
Corner Radius Min to Corner Radius Max
Application
Minimum Depth of Cut
Minimum Depth of Cut
Minimum Feed
Minimum Feed
Grade Of Cutting Tool
Grade Of Cutting Tool
  • K1 (5)
  • K2885 (48)
  • K313 (56)
  • K420 (63)
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  • K68 (63)
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  • KC950 (56)
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  • KCP10B (56)
  • KCP25B (56)
  • KCU10 (63)
  • KCU25 (63)
  • KD050 (12)
  • KD081 (25)
  • KD100 (30)
  • KD120 (33)
  • KD1425 (25)
  • KT175 (48)
  • KT315 (56)
  • KU10T (56)
  • KU25T (56)
  • KU30T (56)
  • KY3000 (33)
Hand Of Tool
Hand Of Tool
  • L (26)
  • R (37)
F Dimension
F Dimension
  • 6.551 mm (2)
  • 7.0 mm (2)
  • 10.3 mm (1)
  • 10.775 mm (1)
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  • 11.0 mm (4)
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  • 12.576 mm (2)
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  • 17.0 mm (4)
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  • 17.475 mm (4)
  • 19.425 mm (1)
  • 22.0 mm (2)
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  • 25.401 mm (2)
  • 27.0 mm (4)
  • 28.576 mm (1)
  • 31.75 mm (4)
  • 32.525 mm (2)
  • 34.926 mm (4)
  • 35.0 mm (1)
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  • 41.276 mm (1)
F Dimension Min to F Dimension Max
F Dimension
F Dimension
  • 0.258 in (2)
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F Dimension Min to F Dimension Max
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
  • 11.175 mm (2)
  • 11.5 mm (2)
  • 18.5 mm (2)
  • 18.55 mm (4)
  • 20.326 mm (1)
  • 22.0 mm (3)
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  • 26.0 mm (2)
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  • 34.0 mm (4)
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  • 44.0 mm (2)
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  • 63.5 mm (4)
  • 69.851 mm (4)
  • 70.0 mm (1)
  • 76.2 mm (1)
  • 82.551 mm (1)
Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
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Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
  • 393.661 in (62)
Maximum Axial Groove Diameter Min to Maximum Axial Groove Diameter Max
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
  • 9999.0 mm (62)
Maximum Axial Groove Diameter Min to Maximum Axial Groove Diameter Max
Cutting Direction
Cutting Direction
  • E (7)
  • S (56)
Maximum Bore Depth
Maximum Bore Depth
  • 1.23 in (1)
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Maximum Bore Depth Min to Maximum Bore Depth Max
Maximum Bore Depth
Maximum Bore Depth
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  • 127.0 mm (3)
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  • 152.4 mm (6)
  • 160.0 mm (4)
  • 177.8 mm (3)
  • 200.0 mm (1)
  • 203.201 mm (8)
  • 254.0 mm (2)
Maximum Bore Depth Min to Maximum Bore Depth Max
Boring Bar Material
Boring Bar Material
  • C (9)
  • S (54)
Front-End
Clamp Style
Clamp Style
  • N (62)
Cutting Width
Cutting Width
  • 0.02 in (23)
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  • 0.039 in (48)
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  • 0.078 in (25)
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  • 0.089 in (36)
  • 0.094 in (12)
  • 0.095 in (53)
  • 0.097 in (25)
  • 0.098 in (48)
  • 0.105 in (25)
  • 0.108 in (48)
  • 0.11 in (25)
  • 0.119 in (56)
  • 0.122 in (25)
  • 0.125 in (56)
  • 0.126 in (56)
  • 0.128 in (48)
  • 0.129 in (23)
  • 0.131 in (12)
  • 0.138 in (56)
  • 0.143 in (25)
  • 0.147 in (11)
  • 0.15 in (23)
  • 0.152 in (23)
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  • 0.218 in (2)
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  • 0.255 in (8)
  • 0.281 in (2)
  • 0.312 in (2)
  • 0.375 in (2)
  • 0.383 in (2)
Cutting Width Min to Cutting Width Max