Counterboring Tools
Counterboring tools and drilling inserts are designed for creating precise and accurate holes of any diameter. The STS toolholders are available in Whistle Notch? and Weldon? shanks and are great for steel, stainless steel, cast iron, non-ferrous materials, high-temp alloys, and hardened materials. CTR?? counterboring tools are designed for high-production screw-head counterbores and similar counterboring operations. They have unequal insert positioning and flutes. JDB电子’s CTR double-sided drilling inserts are known for their high performance and durability.
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Workpiece Material
Workpiece Material
- P Steel (92)
- P0Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(92)
- P1Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(92)
- P2Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(92)
- P3Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(92)
- P4Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(92)
- P5Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(92)
- P6High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(92)
- M Stainless Steel (92)
- M1Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(92)
- M2High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(92)
- M3Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(92)
- K Cast Iron (110)
- K1Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(110)
- K2Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(110)
- K3High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(110)
- N Non-Ferrous Materials (64)
- N1Wrought Aluminum (64)
- N2Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(64)
- N3High-Silicon Aluminum Alloys Si >12.2%(60)
- N4Copper, Brass, Zinc-based on machinability index range of 70-100 (64)
- N5Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (64)
- N6Carbon, Graphite Composites, CFRP (64)
- N7MMC's (59)
- S High-Temp Alloys (91)
- S1Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(91)
- S2Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(91)
- S3Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(91)
- S4Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(91)
- H Hardened Materials (51)
- H1Hardened Materials 44-48 HRC(51)
- H2Hardened Materials 48-55 HRC(51)
- H3Hardened Materials 56-60 HRC(51)
- H4Hardened Materials >60 HRC(51)
Applications
Applications
Counterboring (35)
Drilling (35)
Cutting Diameter
Cutting Diameter
- 0.5959 in(1)
- 0.6352 in(1)
- 0.6746 in(1)
- 0.714 in(2)
- 0.7939 in(1)
- 0.794 in(1)
- 0.8125 in(1)
- 0.8333 in(2)
- 0.8726 in(1)
- 0.873 in(1)
- 0.912 in(2)
- 0.951 in(1)
- 0.9514 in(1)
- 0.9907 in(2)
- 1.0 in(1)
- 1.03 in(1)
- 1.0695 in(1)
- 1.109 in(1)
- 1.1875 in(1)
- 1.188 in(1)
- 1.268 in(1)
- 1.307 in(1)
- 1.3463 in(1)
- 1.3856 in(1)
- 1.425 in(1)
- 1.5037 in(1)
- 1.582 in(1)
- 1.625 in(1)
- 1.661 in(1)
- 1.819 in(1)
- 2.0 in(1)
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Cutting Diameter
Cutting Diameter
- 15.135 mm(1)
- 16.135 mm(1)
- 17.135 mm(1)
- 18.135 mm(2)
- 20.165 mm(2)
- 20.637 mm(1)
- 21.165 mm(2)
- 22.165 mm(2)
- 23.165 mm(2)
- 24.165 mm(2)
- 25.165 mm(2)
- 25.4 mm(1)
- 26.165 mm(1)
- 27.165 mm(1)
- 28.165 mm(1)
- 30.162 mm(1)
- 30.165 mm(1)
- 32.195 mm(1)
- 33.195 mm(1)
- 34.195 mm(1)
- 35.195 mm(1)
- 36.195 mm(1)
- 38.195 mm(1)
- 40.195 mm(1)
- 41.275 mm(1)
- 42.195 mm(1)
- 46.195 mm(1)
- 50.8 mm(1)
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Cutting Condition
Cutting Condition
- Interrupted (23)
- Stable (75)
- Unstable (23)
Maximum Hole Depth [L4]
Maximum Hole Depth [L4]
- 8.5 mm(2)
- 11.0 mm(1)
- 12.7 mm(1)
- 13.5 mm(3)
- 15.875 mm(1)
- 16.0 mm(7)
- 18.5 mm(1)
- 19.05 mm(1)
- 21.0 mm(3)
- 23.0 mm(2)
- 23.5 mm(3)
- 25.4 mm(1)
- 25.5 mm(3)
- 27.5 mm(1)
- 30.0 mm(1)
- 30.5 mm(1)
- 31.75 mm(1)
- 33.5 mm(2)
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Maximum Hole Depth [L4]
Maximum Hole Depth [L4]
- 0.3346 in(2)
- 0.4331 in(1)
- 0.5 in(1)
- 0.5315 in(3)
- 0.625 in(1)
- 0.6299 in(7)
- 0.7283 in(1)
- 0.75 in(1)
- 0.8268 in(3)
- 0.9055 in(2)
- 0.9252 in(3)
- 1.0 in(1)
- 1.0039 in(3)
- 1.0827 in(1)
- 1.1811 in(1)
- 1.2008 in(1)
- 1.25 in(1)
- 1.3189 in(2)
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Connection Style
Connection Style
- Weldon (5)
- Whistle Notch 2 (30)
Number of Flutes
Number of Flutes
- 2 (12)
- 3 (23)
Cutting Edges Per Insert
Cutting Edges Per Insert
- 2.0 (111)
- 4.0 (35)
to
Internal Coolant Capability
Internal Coolant Capability
Over All Length [L]
Over All Length [L]
- 3.189 in(2)
- 3.3858 in(9)
- 3.5 in(2)
- 3.5827 in(4)
- 3.7795 in(4)
- 3.9764 in(4)
- 4.0 in(1)
- 4.3701 in(2)
- 4.5 in(2)
- 4.5669 in(1)
- 4.7638 in(2)
- 4.9606 in(2)
to
Over All Length [L]
Over All Length [L]
- 81.0 mm(2)
- 86.0 mm(9)
- 88.91 mm(2)
- 91.0 mm(4)
- 96.0 mm(4)
- 101.0 mm(4)
- 101.61 mm(1)
- 111.0 mm(2)
- 114.31 mm(2)
- 116.0 mm(1)
- 121.0 mm(2)
- 126.0 mm(2)
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Corner Radius
Corner Radius
- 0.008 in(3)
- 0.016 in(34)
- 0.024 in(4)
- 0.031 in(15)
- 0.039 in(6)
- 0.047 in(6)
- 0.063 in(5)
- 0.079 in(3)
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Corner Radius
Corner Radius
- 0.2 mm(3)
- 0.4 mm(34)
- 0.6 mm(4)
- 0.8 mm(15)
- 1.0 mm(6)
- 1.2 mm(6)
- 1.6 mm(5)
- 2.0 mm(3)
to
Corner Chamfer
Corner Chamfer
- 0.0 mm(76)
to
Corner Chamfer
Corner Chamfer
- 0.0 in(76)
to
Application
Minimum Depth of Cut
Minimum Feed
Minimum Feed
Grade Of Cutting Tool
Grade Of Cutting Tool
- CS5 (23)
- KC7140 (39)
- KC720 (13)
- KC7215 (67)
- KCMS35 (13)
- KCPK10 (41)
- KCU25 (48)
- KCU40 (49)
- KM1 (41)
Hand Of Tool
Hand Of Tool
- R (35)
Wiper Insert
Wiper Insert
- N (76)
Drill Type
Drill Type
- 86-04 (35)
Insert Geometry
Shape
Shape
- S-SQUARE 90 (76)
Insert IC Size
Insert IC Size
- 6.35 mm(13)
- 7.937 mm(16)
- 9.525 mm(20)
- 12.7 mm(18)
- 15.875 mm(9)
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Insert IC Size
Insert IC Size
- 0.25 in(13)
- 0.3125 in(16)
- 0.375 in(20)
- 0.5 in(18)
- 0.625 in(9)
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Cutting Edge Length
Cutting Edge Length
- 6.35 mm(13)
- 7.937 mm(16)
- 9.525 mm(20)
- 12.7 mm(27)
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Cutting Edge Length
Cutting Edge Length
- 0.25 in(13)
- 0.3125 in(16)
- 0.375 in(20)
- 0.5 in(27)
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Chip Breaker CBMD
Chip Breaker CBMD
- 20 (33)
- 21 (30)
- 22 (4)
Cutting Tool Material
Cutting Tool Material
- H W (76)
Tolerance Class
Tolerance Class
- H (12)
Back-End
Connection Type
Connection Type
- CYLINDRICAL (35)
Back-End Diameter
Back-End Diameter
- 19.05 mm(2)
- 20.0 mm(23)
- 25.4 mm(2)
- 31.75 mm(1)
- 32.0 mm(7)
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Back-End Diameter
Back-End Diameter
- 0.75 in(2)
- 0.7874 in(23)
- 1.0 in(2)
- 1.25 in(1)
- 1.2598 in(7)
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