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Spiral Flute PCD Reamer

For precision finishing operations where achieving flawless surface finishes and holding the tightest tolerances are paramount, the Spiral Flute PCD Reamer stands as the definitive solution. Engineered with our advanced polycrystalline diamond cutting edges, this tool is designed to deliver unmatched dimensional accuracy and exceptional longevity in challenging materials. Unlike conventional tools, the unique spiral flute geometry ensures superior chip evacuation, minimizing the risk of surface scoring and enhancing the final hole quality. This design is particularly effective for machining abrasive non-ferrous metals, composites, and high-silicon aluminum alloys, where a Wear-resistant PCD Reamer is not just an advantage but a necessity. The result is a consistently perfect finish, making this tool the ideal choice for high-volume production environments that demand a reliable High-precision PCD Reamer. When the application calls for a PCD Reamer for Precision Holes that combines efficient chip removal with extreme durability, the superior performance of the spiral flute design clearly outperforms a Straight Flute PCD Reamer in many demanding scenarios.


The operational excellence of the Spiral Flute PCD Reamer is rooted in its meticulously engineered parameters. The combination of a positive radial rake angle and optimized helix angle works in concert to produce exceptionally low cutting forces. This significantly reduces the potential for work hardening of the material and tool deflection, which are critical factors for maintaining form and positional tolerances. Furthermore, the smooth, continuous cutting action inherent to the spiral design drastically diminishes vibration and harmonics during the machining process. This stability is crucial for preventing chatter marks and achieving the mirror-like surface finishes required in aerospace, automotive, and medical component manufacturing. The inherent strength of the PCD tip, brazed onto a premium carbide body, ensures that the Spiral Flute PCD Reamer maintains its sharp cutting edge over an extended service life, even when processing the most abrasive workpiece materials.

Key Product Parameters

  • Cutting Material: Premium Polycrystalline Diamond (PCD) Tip
  • Tool Body: High-Grade Tungsten Carbide
  • Flute Design: Spiral (Helical) Flutes
  • Primary Application: Finishing of non-ferrous metals, composites, and abrasive alloys
  • Key Advantage: Excellent chip evacuation and reduced cutting forces

Standard Specifications & Tolerances

Diameter Range (mm) Diameter Tolerance (mm) Shank Type Helix Angle Recommended Finish (Ra µm)
3.0 - 10.0 ±0.002 Straight Shank 15° 0.2 - 0.4
10.1 - 20.0 ±0.003 Straight Shank 12° 0.2 - 0.4
20.1 - 30.0 ±0.004 Straight or Weldon Shank 10° 0.3 - 0.6
30.1 - 50.0 ±0.005 Weldon Shank 8° 0.4 - 0.8

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