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 (6)
- P0Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(6)
- P1Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(6)
- P2Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(6)
- P3Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(6)
- P4Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(6)
- P5Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(6)
- P6High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(6)
- M Stainless Steel (6)
- M1Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(6)
- M2High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(6)
- M3Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(6)
- K Cast Iron (6)
- K1Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(6)
- K2Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(6)
- K3High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(6)
- N Non-Ferrous Materials (6)
- N1Wrought Aluminum (6)
- N2Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(5)
- N3High-Silicon Aluminum Alloys Si >12.2%(2)
- N4Copper, Brass, Zinc-based on machinability index range of 70-100 (6)
- N5Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (5)
- N6Carbon, Graphite Composites, CFRP (5)
- S High-Temp Alloys (6)
- S1Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(6)
- S2Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(6)
- S3Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(6)
- S4Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(6)
- H Hardened Materials (5)
- H1Hardened Materials 44-48 HRC(5)
- H2Hardened Materials 48-55 HRC(5)
- H3Hardened Materials 56-60 HRC(5)
- H4Hardened Materials >60 HRC(5)
Applications
Applications
- Face Grooving (6)
- ID Grooving (6)
- ID Thread Turning (6)
Type of Thread
Type of Thread
- 60 (5)
- ACME (6)
- API (5)
- API RD (3)
- BSW (2)
- BUTTRESS (5)
- M (2)
- NPT (2)
- STUB ACME (2)
- UN (5)
- UNJ (2)
Cutting Condition
Cutting Condition
- Heavily Interrupted Cut (5)
- Lightly Interrupted Cut (5)
- Smooth Cut (5)
Cutting Edges Per Insert
Cutting Edges Per Insert
- 1.0 (5)
- 2.0 (6)
to
Corner Radius
Corner Radius
- 0.002 in(2)
- 0.003 in(5)
- 0.004 in(2)
- 0.005 in(2)
- 0.006 in(5)
- 0.007 in(5)
- 0.008 in(5)
- 0.01 in(5)
- 0.011 in(2)
- 0.012 in(2)
- 0.014 in(5)
- 0.016 in(3)
- 0.019 in(5)
- 0.02 in(2)
- 0.023 in(5)
- 0.031 in(2)
- 0.033 in(1)
- 0.035 in(5)
- 0.039 in(2)
- 0.047 in(2)
- 0.049 in(2)
- 0.06 in(2)
- 0.062 in(2)
- 0.063 in(5)
- 0.069 in(2)
- 0.078 in(2)
- 0.079 in(5)
- 0.089 in(5)
- 0.095 in(5)
- 0.098 in(3)
- 0.125 in(3)
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Corner Radius
Corner Radius
- 0.05 mm(2)
- 0.076 mm(5)
- 0.1 mm(2)
- 0.125 mm(2)
- 0.151 mm(5)
- 0.176 mm(5)
- 0.2 mm(5)
- 0.225 mm(2)
- 0.25 mm(5)
- 0.275 mm(2)
- 0.301 mm(2)
- 0.325 mm(5)
- 0.351 mm(5)
- 0.4 mm(3)
- 0.45 mm(5)
- 0.476 mm(1)
- 0.5 mm(2)
- 0.576 mm(5)
- 0.775 mm(2)
- 0.826 mm(1)
- 0.9 mm(5)
- 1.0 mm(2)
- 1.201 mm(2)
- 1.25 mm(2)
- 1.5 mm(2)
- 1.576 mm(2)
- 1.6 mm(5)
- 1.75 mm(2)
- 1.975 mm(2)
- 2.0 mm(5)
- 2.25 mm(5)
- 2.401 mm(5)
- 2.5 mm(3)
- 3.176 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 (2)
- K313 (5)
- K420 (6)
- K4H (2)
- K68 (6)
- KB1345 (5)
- KB1630 (5)
- KB5625 (2)
- KBH20 (1)
- KC250 (2)
- KC5010 (6)
- KC5025 (6)
- KC5410 (5)
- KC710 (5)
- KC720 (5)
- KC722 (5)
- KC730 (6)
- KC732 (2)
- KC810 (6)
- KC850 (6)
- KC910 (2)
- KC9110 (5)
- KC9120 (2)
- KC9320 (5)
- KC935 (5)
- KC950 (5)
- KCK20 (5)
- KCK20B (5)
- KCP10B (5)
- KCP25B (5)
- KCU10 (6)
- KCU10B (6)
- KCU25 (6)
- KCU25B (5)
- KD050 (1)
- KD081 (2)
- KD100 (4)
- KD120 (5)
- KD1425 (2)
- KT175 (2)
- KT315 (5)
- KU10T (5)
- KU25T (5)
- KU30T (5)
- KY3000 (5)
Hand Of Tool
Hand Of Tool
- L (2)
- R (4)
F Dimension
F Dimension
- 38.1 mm(3)
- 41.276 mm(3)
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F Dimension
F Dimension
- 1.5 in(3)
- 1.625 in(3)
to
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
- 76.2 mm(3)
- 82.551 mm(3)
to
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
- 3.0 in(3)
- 3.25 in(3)
to
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
- 393.661 in(5)
to
Maximum Axial Groove Diameter
Maximum Axial Groove Diameter
- 9999.0 mm(5)
to
Maximum Bore Depth
Maximum Bore Depth
- 9.0 in(1)
- 10.0 in(5)
to
Maximum Bore Depth
Maximum Bore Depth
- 228.601 mm(1)
- 254.0 mm(5)
to
Front-End
Cutting Width
Cutting Width
- 0.039 in(2)
- 0.047 in(2)
- 0.06 in(2)
- 0.062 in(2)
- 0.069 in(2)
- 0.073 in(2)
- 0.078 in(2)
- 0.079 in(2)
- 0.088 in(2)
- 0.089 in(1)
- 0.094 in(1)
- 0.095 in(2)
- 0.097 in(2)
- 0.098 in(2)
- 0.105 in(2)
- 0.108 in(2)
- 0.11 in(2)
- 0.119 in(5)
- 0.122 in(2)
- 0.125 in(5)
- 0.126 in(5)
- 0.128 in(2)
- 0.131 in(1)
- 0.138 in(5)
- 0.143 in(2)
- 0.156 in(2)
- 0.157 in(5)
- 0.167 in(5)
- 0.169 in(2)
- 0.177 in(5)
- 0.178 in(2)
- 0.185 in(3)
- 0.188 in(5)
- 0.189 in(5)
- 0.192 in(1)
- 0.193 in(1)
- 0.195 in(2)
- 0.196 in(2)
- 0.197 in(3)
- 0.202 in(3)
- 0.213 in(3)
- 0.217 in(3)
- 0.218 in(1)
- 0.219 in(3)
- 0.237 in(3)
- 0.25 in(4)
- 0.256 in(3)
- 0.281 in(1)
- 0.312 in(1)
- 0.375 in(1)
- 0.384 in(1)
to
Cutting Width
Cutting Width
- 1.0 mm(2)
- 1.201 mm(2)
- 1.5 mm(2)
- 1.576 mm(2)
- 1.75 mm(2)
- 1.826 mm(2)
- 1.975 mm(2)
- 2.0 mm(2)
- 2.2 mm(2)
- 2.225 mm(2)
- 2.25 mm(1)
- 2.375 mm(1)
- 2.401 mm(2)
- 2.475 mm(2)
- 2.5 mm(2)
- 2.676 mm(2)
- 2.75 mm(2)
- 2.801 mm(2)
- 3.0 mm(5)
- 3.1 mm(2)
- 3.176 mm(5)
- 3.2 mm(5)
- 3.25 mm(2)
- 3.325 mm(1)
- 3.5 mm(5)
- 3.6 mm(2)
- 3.95 mm(2)
- 3.975 mm(1)
- 4.0 mm(5)
- 4.25 mm(5)
- 4.3 mm(2)
- 4.5 mm(5)
- 4.525 mm(2)
- 4.7 mm(3)
- 4.775 mm(5)
- 4.801 mm(5)
- 4.875 mm(1)
- 4.9 mm(1)
- 4.95 mm(2)
- 4.976 mm(2)
- 5.0 mm(3)
- 5.125 mm(3)
- 5.4 mm(3)
- 5.5 mm(3)
- 5.525 mm(1)
- 5.575 mm(3)
- 6.0 mm(3)
- 6.351 mm(4)
- 6.5 mm(3)
- 7.125 mm(1)
- 7.926 mm(1)
- 9.525 mm(1)
- 9.75 mm(1)
to
Insert Geometry
Cutting Tool Material
Cutting Tool Material
- B H (5)
- B L (2)
- C N (5)
- D P (4)
- H T (5)
- H W (6)
Back-End
Back-End Diameter
Back-End Diameter
- 57.151 mm(1)
- 63.5 mm(5)
to
Back-End Diameter
Back-End Diameter
- 2.25 in(1)
- 2.5 in(5)
to
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