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)
    • N5
      Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (63)
    • N6
      Carbon, Graphite Composites, CFRP (63)
    • N7
      MMC's (63)
  • 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)
Applications
Applications
  • Face Grooving Face Grooving (62)
  • Grooving Grooving (3)
  • ID Facing ID Facing (7)
  • ID Grooving ID Grooving (56)
  • ID Thread Turning ID Thread Turning (63)
  • Threading Threading (1)
Type of Thread
Type of Thread
  • 60 (61)
  • ACME (35)
  • API (33)
  • API RD (27)
  • BSW (25)
  • BUTTRESS (56)
  • M (36)
  • NPT (25)
  • STUB ACME (25)
  • UN (56)
  • UNJ (25)
Cutting Condition
Cutting Condition
  • Heavily Interrupted Cut (63)
  • Lightly Interrupted Cut (63)
  • Smooth Cut (63)
  • Varying Depth of Cut (63)
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
Internal Coolant Capability
Internal Coolant Capability
Over All Length [L]
Over All Length [L]
  • 4.921 in (1)
  • 5.906 in (5)
  • 6.0 in (1)
  • 7.079 in (2)
  • 7.875 in (4)
  • 7.976 in (1)
  • 8.0 in (5)
  • 9.843 in (2)
  • 9.879 in (1)
  • 10.0 in (8)
  • 11.811 in (4)
  • 12.0 in (8)
  • 13.781 in (1)
  • 14.0 in (10)
  • 16.0 in (10)
Over All Length [L] Min to Over All Length [L] Max
Over All Length [L]
Over All Length [L]
  • 125.0 mm (1)
  • 150.0 mm (5)
  • 152.4 mm (1)
  • 179.8 mm (2)
  • 200.0 mm (4)
  • 202.601 mm (1)
  • 203.201 mm (5)
  • 250.0 mm (2)
  • 250.925 mm (1)
  • 254.0 mm (8)
  • 300.0 mm (4)
  • 304.8 mm (8)
  • 350.0 mm (1)
  • 355.6 mm (10)
  • 406.401 mm (10)
Over All Length [L] Min to Over All Length [L] Max
Corner configuration
Corner Radius
Corner Radius
  • 0.002 in (25)
  • 0.003 in (61)
  • 0.004 in (48)
  • 0.005 in (25)
  • 0.006 in (33)
  • 0.007 in (44)
  • 0.008 in (61)
  • 0.01 in (44)
  • 0.011 in (25)
  • 0.012 in (25)
  • 0.014 in (33)
  • 0.016 in (27)
  • 0.017 in (13)
  • 0.019 in (33)
  • 0.02 in (48)
  • 0.023 in (33)
  • 0.03 in (23)
  • 0.031 in (48)
  • 0.033 in (2)
  • 0.035 in (33)
  • 0.039 in (48)
  • 0.047 in (48)
  • 0.049 in (48)
  • 0.06 in (48)
  • 0.062 in (25)
  • 0.063 in (56)
  • 0.069 in (48)
  • 0.078 in (25)
  • 0.079 in (33)
  • 0.089 in (33)
  • 0.095 in (33)
  • 0.098 in (8)
  • 0.125 in (8)
Corner Radius Min to Corner Radius Max
Corner Radius
Corner Radius
  • 0.05 mm (25)
  • 0.076 mm (61)
  • 0.1 mm (48)
  • 0.125 mm (25)
  • 0.151 mm (33)
  • 0.176 mm (44)
  • 0.2 mm (61)
  • 0.225 mm (25)
  • 0.25 mm (44)
  • 0.275 mm (25)
  • 0.301 mm (25)
  • 0.325 mm (33)
  • 0.351 mm (33)
  • 0.4 mm (27)
  • 0.426 mm (13)
  • 0.45 mm (33)
  • 0.476 mm (12)
  • 0.5 mm (48)
  • 0.576 mm (33)
  • 0.75 mm (23)
  • 0.775 mm (48)
  • 0.826 mm (2)
  • 0.9 mm (33)
  • 1.0 mm (48)
  • 1.201 mm (48)
  • 1.25 mm (48)
  • 1.5 mm (48)
  • 1.576 mm (25)
  • 1.6 mm (56)
  • 1.75 mm (48)
  • 1.975 mm (25)
  • 2.0 mm (33)
  • 2.25 mm (33)
  • 2.401 mm (33)
  • 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)
  • K4H (37)
  • K68 (63)
  • KB1345 (33)
  • KB1630 (33)
  • KB5625 (25)
  • KBH20 (12)
  • KC250 (53)
  • KC5010 (63)
  • KC5025 (63)
  • KC5410 (56)
  • KC710 (56)
  • KC720 (61)
  • KC722 (56)
  • KC730 (63)
  • KC732 (25)
  • KC810 (63)
  • KC850 (58)
  • KC910 (37)
  • KC9110 (56)
  • KC9120 (25)
  • KC9320 (56)
  • KC935 (56)
  • KC950 (56)
  • KCK20 (45)
  • KCK20B (56)
  • 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)
  • 10.976 mm (2)
  • 11.0 mm (4)
  • 11.101 mm (2)
  • 12.576 mm (2)
  • 12.701 mm (2)
  • 13.0 mm (2)
  • 14.15 mm (2)
  • 14.275 mm (2)
  • 16.25 mm (2)
  • 17.0 mm (4)
  • 17.35 mm (2)
  • 17.475 mm (4)
  • 19.425 mm (1)
  • 22.0 mm (2)
  • 22.225 mm (2)
  • 22.6 mm (2)
  • 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)
  • 38.1 mm (1)
  • 41.276 mm (1)
F Dimension Min to F Dimension Max
F Dimension
F Dimension
  • 0.258 in (2)
  • 0.276 in (2)
  • 0.406 in (1)
  • 0.424 in (1)
  • 0.432 in (2)
  • 0.433 in (4)
  • 0.437 in (2)
  • 0.495 in (2)
  • 0.5 in (2)
  • 0.512 in (2)
  • 0.557 in (2)
  • 0.562 in (2)
  • 0.64 in (2)
  • 0.669 in (4)
  • 0.683 in (2)
  • 0.689 in (4)
  • 0.765 in (1)
  • 0.866 in (2)
  • 0.875 in (2)
  • 0.89 in (2)
  • 1.0 in (2)
  • 1.063 in (4)
  • 1.125 in (1)
  • 1.25 in (4)
  • 1.281 in (2)
  • 1.375 in (4)
  • 1.379 in (1)
  • 1.5 in (1)
  • 1.625 in (1)
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)
  • 25.401 mm (4)
  • 26.0 mm (2)
  • 28.576 mm (4)
  • 34.0 mm (4)
  • 34.926 mm (6)
  • 44.0 mm (2)
  • 44.45 mm (2)
  • 50.801 mm (2)
  • 54.0 mm (4)
  • 57.151 mm (6)
  • 60.325 mm (2)
  • 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
  • 0.44 in (2)
  • 0.453 in (2)
  • 0.728 in (2)
  • 0.73 in (4)
  • 0.8 in (1)
  • 0.866 in (3)
  • 1.0 in (4)
  • 1.024 in (2)
  • 1.125 in (4)
  • 1.339 in (4)
  • 1.375 in (6)
  • 1.732 in (2)
  • 1.75 in (2)
  • 2.0 in (2)
  • 2.126 in (4)
  • 2.25 in (6)
  • 2.375 in (2)
  • 2.5 in (4)
  • 2.75 in (4)
  • 2.757 in (1)
  • 3.0 in (1)
  • 3.25 in (1)
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)
  • 1.232 in (1)
  • 1.291 in (1)
  • 1.5 in (1)
  • 1.891 in (2)
  • 2.0 in (2)
  • 2.499 in (1)
  • 2.5 in (2)
  • 2.52 in (2)
  • 3.0 in (4)
  • 3.15 in (2)
  • 3.75 in (2)
  • 3.781 in (1)
  • 3.938 in (4)
  • 4.0 in (6)
  • 4.5 in (2)
  • 5.0 in (3)
  • 5.039 in (2)
  • 6.0 in (6)
  • 6.299 in (4)
  • 7.0 in (3)
  • 7.875 in (1)
  • 8.0 in (8)
  • 10.0 in (2)
Maximum Bore Depth Min to Maximum Bore Depth Max
Maximum Bore Depth
Maximum Bore Depth
  • 31.25 mm (1)
  • 31.3 mm (1)
  • 32.801 mm (1)
  • 38.1 mm (1)
  • 48.0 mm (2)
  • 50.801 mm (2)
  • 63.475 mm (1)
  • 63.5 mm (2)
  • 64.0 mm (2)
  • 76.2 mm (4)
  • 80.0 mm (2)
  • 95.25 mm (2)
  • 96.0 mm (1)
  • 100.0 mm (4)
  • 101.601 mm (6)
  • 114.301 mm (2)
  • 127.0 mm (3)
  • 128.0 mm (2)
  • 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)
  • 0.031 in (28)
  • 0.035 in (23)
  • 0.039 in (48)
  • 0.041 in (23)
  • 0.047 in (53)
  • 0.055 in (23)
  • 0.058 in (23)
  • 0.06 in (48)
  • 0.061 in (11)
  • 0.062 in (53)
  • 0.067 in (23)
  • 0.069 in (48)
  • 0.073 in (25)
  • 0.077 in (23)
  • 0.078 in (25)
  • 0.079 in (48)
  • 0.088 in (48)
  • 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)
  • 0.156 in (25)
  • 0.157 in (33)
  • 0.167 in (33)
  • 0.169 in (25)
  • 0.177 in (33)
  • 0.178 in (25)
  • 0.185 in (28)
  • 0.188 in (33)
  • 0.189 in (33)
  • 0.192 in (12)
  • 0.193 in (12)
  • 0.195 in (25)
  • 0.197 in (8)
  • 0.202 in (8)
  • 0.213 in (8)
  • 0.217 in (8)
  • 0.218 in (2)
  • 0.219 in (8)
  • 0.237 in (8)
  • 0.25 in (10)
  • 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