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Cobalt double-end mill, TiCN finish, 5/16 inch diameter, 2 flutes

Cleveland Golf

Cleveland Golf HDC-2 Cobalt Double End Mill 5/16 2FL TiCN

SKU CH-NZ2X-2T3RT

Cobalt double-end square mill with TiCN finish, 5/16 in. diameter, two flutes, 3/8 in. shank, 30-degree helix for finishing cuts

  • TypeHole, Drill, Bore & Wire Gauges
  • Cobalt construction resists wear for longer tool life
  • TiCN coating reduces friction to extend cutting performance
  • Double-ended design provides two cutting edges per tool
  • Two-flute geometry clears chips efficiently in finishing passes
  • 30-degree helix angle promotes smooth cutting action

Cobalt Double End Mill

The Cleveland Golf HDC-2 is a square end mill made from cobalt steel for general-purpose finishing tasks. Its double-end design provides two cutting edges in one tool, extending usable life in milling operations. The 5/16 inch milling diameter and 9/16 inch length of cut suit a range of profiling and slotting work.

TiCN Finish Upgrade

The TiCN coating increases surface hardness and wear resistance compared to uncoated cobalt tools, reducing built-up edge in sticky materials. This upgrade is worthwhile when machining abrasive alloys or running longer production batches where tool changes cost downtime. The coating also allows moderately higher cutting speeds without sacrificing edge integrity.

3/8 Inch Shank Constraint

The fixed 3/8 inch shank diameter limits holder compatibility to collets or end mill adapters that accept this specific size. The 3-1/2 inch overall length restricts reach in deep cavities or when fixture clearances are tight. Right-hand helix and 30-degree angle optimise chip evacuation for standard milling but are not suited for left-hand spindle rotation.

Highlights

  • Cobalt construction resists wear for longer tool life
  • TiCN coating reduces friction to extend cutting performance
  • Double-ended design provides two cutting edges per tool
  • Two-flute geometry clears chips efficiently in finishing passes
  • 30-degree helix angle promotes smooth cutting action

Specifications

BrandCleveland
TypeHole, Drill, Bore & Wire Gauges

Questions about this item

Will the 3/8 in. shank fit my tool holder?

The end mill has a 3/8 in. shank diameter, so it fits standard holders made for that size.

How do I avoid breaking the cutter when setting up the double-ended tool?

Clamp only on the shank, keep the 9/16 in. length of cut clear of the holder, and run right-hand rotation at the recommended speed for cobalt.

When should I replace this TiCN-coated cobalt end mill?

Replace it when the TiCN coating wears through, the 30-degree helix flutes show chipping, or the .000 in. corner radius no longer holds tolerance.

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