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Thread Milling

Kennametal offers a range of high-performance threading milling tools for working on multiple materials. These tools are designed to cut both internal and external threads making them ideal for various applications including those where taps might break. Our Kennametal series of thread mills cover a wide range of applications including small-bore threading, large-pitch threading, and deep-hole applications. Most of the thread mills feature through-coolant capabilities.

 

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    Key Filters
    Workpiece Material
    Workpiece Material
    • P Steel (369)
      • P0
        Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(369)
      • P1
        Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS(369)
      • P2
        Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS(369)
      • P3
        Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS(369)
      • P4
        Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS(350)
      • P5
        Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS(369)
      • P6
        High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS(350)
    • M Stainless Steel (369)
      • M1
        Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS(369)
      • M2
        High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS(369)
      • M3
        Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS(350)
    • K Cast Iron (369)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(369)
      • K2
        Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS(369)
      • K3
        High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS(369)
    • N Non-Ferrous Materials (19)
      • N1
        Wrought Aluminum (19)
      • N2
        Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%(19)
      • N3
        High-Silicon Aluminum Alloys Si >12.2%(19)
      • N4
        Copper, Brass, Zinc-based on machinability index range of 70-100 (19)
      • N5
        Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass (19)
      • N6
        Carbon, Graphite Composites, CFRP (19)
    • S High-Temp Alloys (242)
      • S1
        Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS(242)
      • S2
        Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS(242)
      • S3
        Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS(242)
      • S4
        Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS(242)
    • H Hardened Materials (253)
      • H1
        Hardened Materials 44-48 HRC(253)
    Applications
    Applications
    • CountersinkingCountersinking (2)
    • DrillingDrilling (1)
    • ID Thread TurningID Thread Turning (207)
    • OD Thread TurningOD Thread Turning (57)
    • Pipe ThreadPipe Thread (45)
    • Shoulder Bottom ShoulderShoulder Bottom Shoulder (33)
    • Shoulder RoughingShoulder Roughing (33)
    • Shoulder Square EndShoulder Square End (33)
    • Thread MillingThread Milling (160)
    • ThreadingThreading (160)
    Cutting Diameter
    Cutting Diameter
    • 0.095 in(1)
    • 0.124 in(1)
    • 0.157 in(1)
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    • 0.315 in(2)
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    • 0.354 in(4)
    • 0.39 in(1)
    • 0.394 in(4)
    • 0.399 in(1)
    • 0.449 in(1)
    • 0.45 in(2)
    • 0.453 in(3)
    • 0.457 in(1)
    • 0.473 in(2)
    • 0.477 in(1)
    • 0.531 in(1)
    • 0.535 in(1)
    • 0.551 in(3)
    • 0.579 in(1)
    • 0.58 in(1)
    • 0.581 in(1)
    • 0.591 in(2)
    • 0.595 in(1)
    • 0.608 in(2)
    • 0.61 in(3)
    • 0.63 in(4)
    • 0.669 in(5)
    • 0.67 in(2)
    • 0.677 in(1)
    • 0.681 in(1)
    • 0.748 in(1)
    • 0.75 in(1)
    • 0.787 in(3)
    • 0.79 in(1)
    • 0.799 in(1)
    • 0.802 in(1)
    • 0.807 in(2)
    • 0.811 in(4)
    • 0.835 in(2)
    • 0.866 in(5)
    • 0.87 in(5)
    • 0.906 in(1)
    • 0.909 in(2)
    • 0.917 in(1)
    • 0.965 in(1)
    • 0.969 in(1)
    • 0.984 in(1)
    • 1.02 in(2)
    • 1.024 in(4)
    • 1.039 in(2)
    • 1.18 in(3)
    • 1.181 in(13)
    • 1.22 in(4)
    • 1.358 in(1)
    • 1.379 in(1)
    • 1.417 in(4)
    • 1.421 in(2)
    • 1.437 in(1)
    • 1.441 in(2)
    • 1.457 in(2)
    • 1.46 in(1)
    • 1.478 in(1)
    • 1.539 in(1)
    • 1.651 in(1)
    • 1.655 in(4)
    • 1.69 in(1)
    • 1.732 in(2)
    • 1.811 in(1)
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    • 1.929 in(2)
    • 2.047 in(2)
    • 2.09 in(1)
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    • 2.205 in(1)
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    • 2.48 in(1)
    Cutting Diameter MintoCutting Diameter Max
    Cutting Diameter
    Cutting Diameter
    • 2.401 mm(1)
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    • 63.0 mm(1)
    Cutting Diameter MintoCutting Diameter Max
    Maximum Cutting Diameter
    Maximum Cutting Diameter
    • 13.9 mm(1)
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    • 45.0 mm(1)
    • 49.0 mm(1)
    Maximum Cutting Diameter MintoMaximum Cutting Diameter Max
    Maximum Cutting Diameter
    Maximum Cutting Diameter
    • 0.547 in(1)
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    • 0.669 in(1)
    • 0.67 in(1)
    • 0.866 in(1)
    • 0.87 in(1)
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    • 1.421 in(1)
    • 1.538 in(1)
    • 1.772 in(1)
    • 1.929 in(1)
    Maximum Cutting Diameter MintoMaximum Cutting Diameter Max
    Cutting Length
    Cutting Length
    • 6.25 mm(1)
    • 8.725 mm(1)
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    • 10.925 mm(4)
    • 11.0 mm(3)
    • 12.351 mm(1)
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    • 36.7 mm(1)
    • 38.5 mm(2)
    • 41.151 mm(2)
    Cutting Length MintoCutting Length Max
    Cutting Length
    Cutting Length
    • 0.246 in(1)
    • 0.345 in(1)
    • 0.41 in(4)
    • 0.424 in(1)
    • 0.43 in(4)
    • 0.433 in(3)
    • 0.486 in(1)
    • 0.63 in(13)
    • 0.648 in(1)
    • 0.662 in(2)
    • 0.795 in(1)
    • 0.805 in(1)
    • 0.964 in(1)
    • 0.972 in(1)
    • 0.998 in(1)
    • 1.06 in(5)
    • 1.063 in(6)
    • 1.102 in(1)
    • 1.149 in(1)
    • 1.266 in(1)
    • 1.296 in(1)
    • 1.445 in(1)
    • 1.516 in(2)
    • 1.62 in(2)
    Cutting Length MintoCutting Length Max
    Type of Thread
    Type of Thread
    • BSPT (18)
    • BSW (99)
    • M (168)
    • MF (10)
    • NPS (15)
    • NPT (46)
    • NPTF (32)
    • UN (156)
    Thread Size
    Thread Size
    • M10 X 1.0 (1)
    • M10 X 1.5 (1)
    • M10X1.5 (1)
    • M12 X 1.0 (1)
    • M12 X 1.5 (1)
    • M12 X 1.75 (1)
    • M14 X 1.5 (1)
    • M14 X 2.0 (1)
    • M14X1.5 (1)
    • M16 X 1.5 (1)
    • M16 X 2.0 (1)
    • M18 X 1.5 (1)
    • M20 X 1.5 (1)
    • M20 X 2.5 (1)
    • M3 X 0.5 (1)
    • M4 X 0.7 (1)
    • M5 X 0.8 (1)
    • M6 X 1 (1)
    • M8 X 0.75 (1)
    • M8 X 1.0 (1)
    • M8 X 1.25 (1)
    Reach
    Reach
    • 0.472 in(1)
    • 0.473 in(3)
    • 0.61 in(2)
    • 0.648 in(1)
    • 0.662 in(1)
    • 0.669 in(2)
    • 0.787 in(1)
    • 0.79 in(1)
    • 0.797 in(1)
    • 0.805 in(1)
    • 0.807 in(1)
    • 0.866 in(2)
    • 0.87 in(2)
    • 0.906 in(1)
    • 0.909 in(1)
    • 0.931 in(1)
    • 0.964 in(1)
    • 0.972 in(1)
    • 0.984 in(1)
    • 0.998 in(1)
    • 1.0 in(1)
    • 1.02 in(2)
    • 1.024 in(4)
    • 1.098 in(1)
    • 1.102 in(3)
    • 1.149 in(1)
    • 1.181 in(2)
    • 1.191 in(1)
    • 1.26 in(2)
    • 1.266 in(1)
    • 1.296 in(1)
    • 1.319 in(2)
    • 1.341 in(1)
    • 1.379 in(1)
    • 1.417 in(2)
    • 1.421 in(1)
    • 1.445 in(1)
    • 1.449 in(1)
    • 1.457 in(1)
    • 1.496 in(1)
    • 1.5 in(1)
    • 1.567 in(1)
    • 1.575 in(4)
    • 1.579 in(3)
    • 1.62 in(2)
    • 1.68 in(1)
    • 1.689 in(2)
    • 1.69 in(1)
    • 1.693 in(10)
    • 1.701 in(3)
    • 1.732 in(1)
    • 1.752 in(1)
    • 1.77 in(1)
    • 1.772 in(3)
    • 1.78 in(1)
    • 1.788 in(1)
    • 1.891 in(2)
    • 1.969 in(5)
    • 2.0 in(3)
    • 2.031 in(2)
    • 2.047 in(1)
    • 2.15 in(1)
    • 2.165 in(4)
    • 2.201 in(2)
    • 2.283 in(1)
    • 2.559 in(7)
    • 2.561 in(1)
    • 2.567 in(1)
    • 2.575 in(2)
    • 2.693 in(1)
    • 2.961 in(1)
    • 2.969 in(1)
    • 3.15 in(4)
    • 3.209 in(1)
    • 3.358 in(2)
    • 3.362 in(2)
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    • 4.055 in(1)
    • 4.059 in(1)
    • 4.346 in(1)
    • 4.358 in(1)
    • 4.728 in(1)
    • 4.74 in(1)
    • 5.039 in(2)
    • 5.428 in(1)
    • 5.984 in(1)
    Reach MintoReach Max
    Reach
    Reach
    • 11.951 mm(1)
    • 12.0 mm(3)
    • 15.5 mm(2)
    • 16.45 mm(1)
    • 16.825 mm(1)
    • 17.0 mm(2)
    • 20.0 mm(1)
    • 20.076 mm(1)
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    • 23.651 mm(1)
    • 24.475 mm(1)
    • 24.701 mm(1)
    • 25.0 mm(1)
    • 25.35 mm(1)
    • 25.401 mm(1)
    • 25.901 mm(2)
    • 26.0 mm(4)
    • 27.901 mm(1)
    • 28.0 mm(3)
    • 29.151 mm(1)
    • 30.0 mm(2)
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    • 32.0 mm(2)
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    • 33.5 mm(2)
    • 34.051 mm(1)
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    • 36.801 mm(1)
    • 37.0 mm(1)
    • 38.0 mm(1)
    • 38.1 mm(1)
    • 39.801 mm(1)
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    • 40.1 mm(3)
    • 41.151 mm(2)
    • 42.676 mm(1)
    • 42.901 mm(2)
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    • 45.401 mm(1)
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    • 50.0 mm(5)
    • 50.801 mm(3)
    • 51.551 mm(2)
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    • 54.6 mm(1)
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    • 55.901 mm(2)
    • 58.0 mm(1)
    • 65.0 mm(7)
    • 65.05 mm(1)
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    • 65.4 mm(2)
    • 68.4 mm(1)
    • 75.2 mm(1)
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    • 80.0 mm(4)
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    • 85.301 mm(2)
    • 85.4 mm(2)
    • 89.65 mm(1)
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    • 120.4 mm(1)
    • 128.0 mm(2)
    • 137.875 mm(1)
    • 152.0 mm(1)
    Reach MintoReach Max
    Tool Cutting Edge Angle
    Tool Cutting Edge Angle
    • 88.217 (10)
    • 90.0 (130)
    Tool Cutting Edge Angle MintoTool Cutting Edge Angle Max
    Connection Style
    Connection Style
    • A-Socket Head Cap Screw (23)
    • Straight-Cylindrical (35)
    • Weldon (102)
    Number of Flutes
    Number of Flutes
    • 1 (46)
    • 2 (26)
    • 3 (36)
    • 4 (27)
    • 5 (12)
    • 6 (6)
    • 7 (3)
    • 8 (2)
    • 9 (2)
    Cutting Edges Per Insert
    Cutting Edges Per Insert
    • 1.0 (104)
    • 2.0 (210)
    • 3.0 (60)
    Cutting Edges Per Insert MintoCutting Edges Per Insert Max
    Internal Coolant Capability
    Internal Coolant Capability
    Over All Length [L]
    Over All Length [L]
    • 1.26 in(2)
    • 1.319 in(2)
    • 1.379 in(1)
    • 1.496 in(1)
    • 1.567 in(1)
    • 1.575 in(3)
    • 1.579 in(3)
    • 1.655 in(1)
    • 1.891 in(2)
    • 1.969 in(5)
    • 2.0 in(3)
    • 2.165 in(3)
    • 2.48 in(3)
    • 2.717 in(1)
    • 2.721 in(1)
    • 2.75 in(1)
    • 2.757 in(3)
    • 3.031 in(1)
    • 3.11 in(1)
    • 3.12 in(1)
    • 3.15 in(5)
    • 3.189 in(1)
    • 3.228 in(2)
    • 3.269 in(1)
    • 3.273 in(1)
    • 3.301 in(1)
    • 3.307 in(1)
    • 3.311 in(1)
    • 3.346 in(5)
    • 3.38 in(1)
    • 3.39 in(1)
    • 3.42 in(1)
    • 3.5 in(2)
    • 3.504 in(1)
    • 3.543 in(7)
    • 3.56 in(2)
    • 3.583 in(2)
    • 3.622 in(1)
    • 3.74 in(3)
    • 3.75 in(1)
    • 3.761 in(1)
    • 3.858 in(2)
    • 3.902 in(1)
    • 3.938 in(2)
    • 4.0 in(1)
    • 4.016 in(3)
    • 4.021 in(1)
    • 4.055 in(2)
    • 4.059 in(1)
    • 4.091 in(2)
    • 4.094 in(1)
    • 4.13 in(3)
    • 4.134 in(1)
    • 4.15 in(1)
    • 4.173 in(1)
    • 4.194 in(1)
    • 4.331 in(1)
    • 4.38 in(2)
    • 4.488 in(1)
    • 4.529 in(3)
    • 4.532 in(1)
    • 4.551 in(1)
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    • 4.606 in(1)
    • 4.65 in(1)
    • 4.72 in(1)
    • 4.724 in(3)
    • 4.843 in(1)
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    • 5.0 in(2)
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    • 5.513 in(2)
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    • 6.299 in(1)
    • 6.33 in(1)
    • 6.37 in(1)
    • 6.449 in(1)
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    • 6.535 in(2)
    • 6.694 in(1)
    • 7.202 in(1)
    • 7.323 in(1)
    • 7.702 in(1)
    • 7.718 in(1)
    • 7.819 in(1)
    • 7.913 in(1)
    • 8.35 in(1)
    • 8.74 in(1)
    Over All Length [L] MintoOver All Length [L] Max
    Over All Length [L]
    Over All Length [L]
    • 32.0 mm(2)
    • 33.5 mm(2)
    • 35.0 mm(1)
    • 38.0 mm(1)
    • 39.801 mm(1)
    • 40.0 mm(3)
    • 40.1 mm(3)
    • 42.0 mm(1)
    • 48.0 mm(2)
    • 50.0 mm(5)
    • 50.801 mm(3)
    • 55.0 mm(3)
    • 63.0 mm(3)
    • 69.0 mm(1)
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    • 69.851 mm(1)
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    Corner Radius
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    Application
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    Grade Of Cutting Tool
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    Countersunk Angle MintoCountersunk Angle Max
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    • 0.571 in(7)
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    • 0.59 in(4)
    • 0.709 in(1)
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    • 0.91 in(1)
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    • 1.516 in(4)
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    • 1.575 in(4)
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    Cutting Width
    Cutting Width
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    Insert Shape
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    Thread Pitch
    Thread Pitch
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    Center Cutting
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    Shape
    Shape
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    Insert IC Size
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    Cutting Edge Length
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    Cutting Edge Length
    Cutting Edge Length
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    Cutting Edge Length MintoCutting Edge Length Max
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    Cutting Tool Material
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    Connection Type
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    TM24

    TM24

    Kennametal offers a wide selection of TM24 indexable single cutting-edge inserts, parallel and tapered thread mill holders for small bore threading operations.
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    TM25

    TM25

    Choose from a wide selection of Kennametal TM25 indexable inserts with two cutting-edges, parallel and tapered thread mill holders for standard threading applications.
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    TM40

    TM40

    Kennametal offers a wide selection of TM40 indexable inserts with two cutting edges, and parallel and tapered thread mill holders for long-thread applications.
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    TM41

    TM41

    Discover Kennametal's two cutting-edge indexable inserts and parallel thread mills for large-pitch threading. Ideal for internal and external applications.
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    KTMD

    KTMD

    The KTMD series from Kennametal is a multi-flute, single-point, high-performance, and economic solution for thread milling in deep-hole applications. Shop here.
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    TMS

    TMS

    Kennametal's Thread Milling (TMS) series of indexable inserts, parallel and tapered thread mill systems are available for internal and external threading.
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    TM711

    TM711

    Explore Kennametal's high-performance solid carbide thread mills with through coolant. They are ideal for threading blind and through holes in a many materials.
    TM721

    TM721

    Chamfer and thread mill with TM721 solid carbide mills from Kennametal. They have a through coolant design and are available in inch, metric, and metric fine.
    TM731

    TM731

    Drill, chamfer, and thread mill with Kennametal's TM731 solid carbide mills. These HP mills have a through coolant feature and use for blind and through holes.
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