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Precision Hole Finishing - Reaming & Boring

Kennametal offers comprehensive solutions for precision hole finishing. The portfolio includes solid reamers, modular reamers, expandable reamers, and rotating boring systems for large-volume production and fine-bore tooling. Kennametal's reaming tools are ideal for achieving fine surface finishes and tight tolerances. These tools feature cutting-edge geometries and materials, ensuring consistent results and extended tool life in precision hole finishing applications.   

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Workpiece Material
  • P Steel (777)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (729)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (777)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS (777)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS (777)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS (777)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS (777)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS (777)
  • M Stainless Steel (732)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS (732)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS (732)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS (732)
  • K Cast Iron (533)
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      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS (532)
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    • K3
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  • S High-Temp Alloys (701)
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    • S2
      Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS (700)
    • S3
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  • H Hardened Materials (146)
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      Hardened Materials 56-60 HRC (146)
    • H4
      Hardened Materials >60 HRC (146)
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Applications
Applications
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Cutting Condition
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Reach
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Connection Style
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Number of Flutes
Number of Flutes
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  • 4 (64)
  • 6 (178)
  • 8 (88)
Cutting Edges Per Insert
Cutting Edges Per Insert
  • 1.0 (60)
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Cutting Edges Per Insert Min to Cutting Edges Per Insert Max
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Internal Coolant Capability
Over All Length [L]
Over All Length [L]
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Over All Length [L]
Over All Length [L]
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