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A Harvey Performance Company

Counterbores - Flat Bottom

Holemaking & Threading
Counterbores-Flat Bottom

Holemaking & Threading

The flat bottom design featured in this Harvey Tool product offering of Counterbores - Flat Bottom allows for spot facing or counterboring on irregular surfaces. This tool is ideal for castings, rounded, concaved or drafted part surfaces.

  • For spot facing or counterboring on irregular surfaces
  • Flat bottom (no dish) design allows spot facing or counterboring on irregular surfaces
  • Ideal for castings, rounded parts, concaved, or drafted surfaces
  • Can be used for flat bottom reaming or straightening misaligned holes
  • Center cutting
  • Ground with full cylindrical margin (not side cutting)
  • 15° helix
  • 4 flutes
  • Solid carbide
  • AlTiN coating for increased performance in ferrous materials
  • AlTiN Nano coating for superior performance in ferrous and difficult to machine materials
  • CNC ground in the USA   
Spotting Spotting
Counterboring Counterboring

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* Tolerance listed above refers to uncoated couterbores. Tolerance for AlTiN coated counterbores is +.0002"/-.0005"

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