Boring Heads
Top Notch™ threading boring heads are specifically designed to excel in creating larger holes that already exist. They are available in several diameters, providing a range of threading options. These boring heads are designed to deliver outstanding performance.
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Filters
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Workpiece Material
Workpiece Material
- P Steel (7)
- P3Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(7)
- P4Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(7)
- P1Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(7)
- P6High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(7)
- P0Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(7)
- P5Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(7)
- P2Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(7)
- M Stainless Steel (7)
- M1Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(7)
- M3Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(7)
- M2High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(7)
- K Cast Iron (7)
- K1Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(7)
- K3High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(7)
- K2Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(7)
- N Non-Ferrous Materials (7)
- N5Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (7)
- N7MMC's (7)
- N2Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(7)
- N1Wrought Aluminum (7)
- N3High-Silicon Aluminum Alloys Si >12.2%(7)
- N4Copper, Brass, Zinc-based on machinability index range of 70-100 (7)
- N6Carbon, Graphite Composites, CFRP (7)
- S High-Temp Alloys (7)
- S2Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(7)
- S1Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(7)
- S4Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(7)
- S3Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(7)
- H Hardened Materials (7)
- H1Hardened Materials 44-48 HRC(7)
- H2Hardened Materials 48-55 HRC(6)
- H3Hardened Materials 56-60 HRC(6)
- H4Hardened Materials >60 HRC(6)
Applications
Applications
Face Grooving (7)
ID Grooving (7)
ID Thread Turning (7)
Cutting Condition Material
Cutting Condition Material
- H-All (7)
- K-All (7)
- M-All (7)
- N-All (7)
- P-All (7)
- S-All (7)
Type of Thread
Type of Thread
- 60 (6)
- ACME (7)
- API (6)
- API RD (4)
- BSW (3)
- BUTTRESS (6)
- M (3)
- NPT (3)
- STUB ACME (3)
- UN (6)
- UNJ (3)
Cutting Condition
Cutting Condition
- Heavily Interrupted Cut (7)
- Lightly Interrupted Cut (7)
- Smooth Cut (7)
Cutting Edges Per Insert
Cutting Edges Per Insert
- 1.0 (6)
- 2.0 (7)
to
Corner Radius
Corner Radius
- 0.002 in(3)
- 0.003 in(6)
- 0.004 in(3)
- 0.005 in(3)
- 0.006 in(6)
- 0.007 in(6)
- 0.008 in(6)
- 0.009 in(3)
- 0.01 in(6)
- 0.011 in(3)
- 0.012 in(3)
- 0.013 in(6)
- 0.014 in(6)
- 0.016 in(4)
- 0.017 in(3)
- 0.018 in(6)
- 0.019 in(1)
- 0.02 in(3)
- 0.023 in(6)
- 0.031 in(3)
- 0.032 in(1)
- 0.035 in(6)
- 0.039 in(3)
- 0.047 in(3)
- 0.049 in(3)
- 0.059 in(3)
- 0.062 in(3)
- 0.063 in(6)
- 0.069 in(3)
- 0.078 in(3)
- 0.079 in(6)
- 0.089 in(6)
- 0.094 in(6)
- 0.098 in(3)
- 0.125 in(3)
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Corner Radius
Corner Radius
- 0.05 mm(3)
- 0.075 mm(6)
- 0.1 mm(3)
- 0.125 mm(3)
- 0.15 mm(6)
- 0.175 mm(6)
- 0.2 mm(6)
- 0.225 mm(3)
- 0.25 mm(6)
- 0.275 mm(3)
- 0.3 mm(3)
- 0.325 mm(6)
- 0.35 mm(6)
- 0.4 mm(4)
- 0.425 mm(3)
- 0.45 mm(6)
- 0.475 mm(1)
- 0.5 mm(3)
- 0.575 mm(6)
- 0.775 mm(3)
- 0.825 mm(1)
- 0.9 mm(6)
- 1.0 mm(3)
- 1.2 mm(3)
- 1.25 mm(3)
- 1.5 mm(3)
- 1.575 mm(3)
- 1.6 mm(6)
- 1.75 mm(3)
- 1.975 mm(3)
- 2.0 mm(6)
- 2.25 mm(6)
- 2.4 mm(6)
- 2.5 mm(3)
- 3.175 mm(3)
to
Application
Minimum Depth of Cut
Minimum Depth of Cut
Minimum Feed
Minimum Feed
Grade Of Cutting Tool
Grade Of Cutting Tool
- K2885 (3)
- K313 (6)
- K420 (7)
- K4H (3)
- K68 (7)
- KB1345 (6)
- KB1630 (6)
- KB5625 (3)
- KBH20 (1)
- KC250 (3)
- KC5010 (7)
- KC5025 (7)
- KC5410 (6)
- KC710 (6)
- KC720 (6)
- KC722 (6)
- KC730 (7)
- KC732 (3)
- KC810 (7)
- KC850 (7)
- KC910 (3)
- KC9110 (6)
- KC9120 (3)
- KC9320 (6)
- KC935 (6)
- KC950 (6)
- KCK20 (6)
- KCK20B (6)
- KCP10B (6)
- KCP25B (6)
- KCU10 (7)
- KCU25 (7)
- KD050 (1)
- KD081 (3)
- KD100 (5)
- KD120 (6)
- KD1425 (3)
- KT175 (3)
- KT315 (6)
- KU10T (6)
- KU25T (6)
- KU30T (6)
- KY3000 (6)
Hand Of Tool
Hand Of Tool
- L (2)
- R (5)
F Dimension
F Dimension
- 31.75 mm(1)
- 38.1 mm(3)
- 41.275 mm(3)
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F Dimension
F Dimension
- 1.25 in(1)
- 1.5 in(3)
- 1.625 in(3)
to
Minimum Bore Diameter
Minimum Bore Diameter
- 2.5000 in(1)
- 3.0000 in(3)
- 3.2500 in(3)
to
Minimum Bore Diameter
Minimum Bore Diameter
- 63.5000 mm(1)
- 76.2000 mm(3)
- 82.5500 mm(3)
to
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
- 63.5 mm(1)
- 76.2 mm(3)
- 82.55 mm(3)
to
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
- 2.5 in(1)
- 3.0 in(3)
- 3.25 in(3)
to
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
- 393.661 in(6)
to
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
- 9999.0 mm(6)
to
Maximum Bore Depth
Maximum Bore Depth
- 8.0 in(1)
- 9.0 in(1)
- 10.0 in(5)
to
Maximum Bore Depth
Maximum Bore Depth
- 203.2 mm(1)
- 228.6 mm(1)
- 254.0 mm(5)
to
Front-End
Cutting Width
Cutting Width
- 0.0394 in(3)
- 0.047 in(3)
- 0.0472 in(3)
- 0.0591 in(3)
- 0.062 in(3)
- 0.0689 in(3)
- 0.072 in(3)
- 0.078 in(3)
- 0.0787 in(3)
- 0.079 in(1)
- 0.0866 in(3)
- 0.088 in(3)
- 0.0886 in(2)
- 0.094 in(3)
- 0.097 in(3)
- 0.0984 in(3)
- 0.105 in(3)
- 0.108 in(3)
- 0.1083 in(3)
- 0.11 in(3)
- 0.118 in(3)
- 0.1181 in(6)
- 0.122 in(3)
- 0.125 in(6)
- 0.126 in(6)
- 0.128 in(3)
- 0.131 in(1)
- 0.1378 in(6)
- 0.142 in(3)
- 0.156 in(3)
- 0.157 in(3)
- 0.1574 in(6)
- 0.1575 in(6)
- 0.167 in(6)
- 0.1673 in(3)
- 0.169 in(3)
- 0.1771 in(6)
- 0.1772 in(6)
- 0.178 in(3)
- 0.185 in(4)
- 0.188 in(6)
- 0.189 in(6)
- 0.192 in(1)
- 0.193 in(1)
- 0.195 in(3)
- 0.1969 in(3)
- 0.197 in(3)
- 0.202 in(3)
- 0.213 in(3)
- 0.2165 in(3)
- 0.2166 in(2)
- 0.218 in(1)
- 0.219 in(3)
- 0.2362 in(3)
- 0.25 in(4)
- 0.255 in(3)
- 0.281 in(1)
- 0.312 in(1)
- 0.375 in(1)
- 0.383 in(1)
- 1.93 in(1)
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Cutting Width
Cutting Width
- 1.0 mm(3)
- 1.19 mm(2)
- 1.194 mm(3)
- 1.2 mm(3)
- 1.5 mm(3)
- 1.57 mm(3)
- 1.575 mm(3)
- 1.75 mm(3)
- 1.829 mm(3)
- 1.981 mm(3)
- 2.0 mm(3)
- 2.2 mm(3)
- 2.235 mm(3)
- 2.24 mm(1)
- 2.25 mm(2)
- 2.388 mm(3)
- 2.39 mm(2)
- 2.464 mm(3)
- 2.5 mm(3)
- 2.667 mm(3)
- 2.743 mm(3)
- 2.75 mm(3)
- 2.794 mm(3)
- 2.997 mm(3)
- 3.0 mm(6)
- 3.099 mm(3)
- 3.17 mm(3)
- 3.175 mm(6)
- 3.18 mm(2)
- 3.2 mm(6)
- 3.25 mm(3)
- 3.251 mm(3)
- 3.32 mm(1)
- 3.329 mm(1)
- 3.5 mm(6)
- 3.607 mm(3)
- 3.96 mm(3)
- 3.962 mm(3)
- 3.974 mm(1)
- 3.988 mm(3)
- 4.0 mm(6)
- 4.242 mm(6)
- 4.25 mm(3)
- 4.3 mm(3)
- 4.5 mm(6)
- 4.521 mm(3)
- 4.6 mm(1)
- 4.699 mm(4)
- 4.775 mm(6)
- 4.78 mm(1)
- 4.785 mm(1)
- 4.788 mm(2)
- 4.8 mm(3)
- 4.801 mm(6)
- 4.81 mm(3)
- 4.88 mm(1)
- 4.9 mm(1)
- 4.95 mm(3)
- 5.0 mm(3)
- 5.004 mm(3)
- 5.131 mm(3)
- 5.41 mm(3)
- 5.5 mm(3)
- 5.537 mm(1)
- 5.563 mm(3)
- 6.0 mm(3)
- 6.35 mm(4)
- 6.36 mm(2)
- 6.48 mm(3)
- 7.137 mm(1)
- 7.925 mm(1)
- 9.525 mm(1)
- 9.73 mm(1)
to
Insert Geometry
Cutting Tool Material
Cutting Tool Material
- B H (6)
- B L (3)
- C N (6)
- D P (5)
- H T (6)
- H W (7)
Back-End
Back-End Diameter
Back-End Diameter
- 50.8 mm(1)
- 57.15 mm(1)
- 63.5 mm(5)
to
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