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Drill Bits Unlimted

0.64mm (.0252") 4-Flute Carbide Micro Reamer 3mm Shank MR34-0252.281 K226

0.64mm (.0252") 4-Flute Carbide Micro Reamer 3mm Shank MR34-0252.281 K226

Regular price $31.95 USD
Regular price Sale price $31.95 USD
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This 0.64mm (.0252") 4-flute carbide micro reamer is manufactured by Kyocera from sub-micron grain solid carbide and features a bright uncoated finish for precision hole-finishing applications.

This tool is part of the Kyocera Series MR34 micro reamer line and is designed for reaming through holes where improved size accuracy, roundness, and surface finish are required after drilling. The tool uses a left-hand spiral with right-hand cutting, a common reamer geometry that helps support smooth hole finishing.

With its 0.64mm cutting diameter, 7mm flute length, 18mm reach, and 3mm shank, this micro reamer is well suited for fine precision work in small-diameter holes where rigidity and accuracy matter.

This tool is manufactured by Kyocera and made in the USA.

Manufacturer: Kyocera

Manufacturer Part Number: MR34-0252.281

Country of Origin: United States

Typical Applications

  • Precision hole finishing
  • Reaming through holes
  • Improving drilled hole size accuracy
  • Fine micro-machining operations
  • Applications requiring smoother hole finish and better roundness

Benefits

  • Micro reamer geometry for improved hole size and finish
  • 4 flutes support stable reaming action
  • Solid carbide construction for rigidity and wear resistance
  • Bright uncoated finish for sharp cutting edges
  • 3mm shank for secure holding in precision setups

Specifications

Manufacturer Kyocera
Tool Type Micro Reamer
Series MR34
Cutting Diameter 0.64mm (.0252")
Flute Length 7mm
Reach 18mm
Overall Length 50mm
Shank Diameter 3mm
Number of Flutes 4
Material Sub-Micron Grain Solid Carbide
Finish Bright (Uncoated)
Flute Style Spiral Flute
Spiral Direction Left-Hand Spiral
Cutting Direction Right-Hand Cutting
Primary Application Reaming Through Holes / Hole Finishing
Steel (P) Compatibility Yes
Stainless (M) Compatibility No
Cast Iron (K) Compatibility Yes
Hardened Material (H) Compatibility No
Non-Ferrous (N) Compatibility Yes
Country of Origin United States
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