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Cobalt square end mill with TiCN coating

Cleveland Golf

Cleveland Golf Cobalt Square End Mill 3/8 2FL TiCN

SKU CH-TQNA-K11AM

A 3/8 inch cobalt square end mill with two flutes and TiCN finish for finishing applications

  • TypeHole, Drill, Bore & Wire Gauges
  • Cobalt construction resists wear for longer tool life
  • TiCN coating reduces friction and extends cutting performance
  • Double-ended design provides two cutting edges per tool
  • 30-degree helix angle promotes smooth chip evacuation
  • Right-hand cutting direction suits standard milling operations

Cobalt End Mill for Finishing

This Cleveland Golf square end mill is a general-purpose cutting tool made from cobalt steel with a TiCN coating. The 3/8 inch diameter, two-flute design measures 3-1/2 inches overall with a 9/16 inch length of cut. It features a double-ended configuration with a 30-degree helix angle and right-hand cutting direction for finishing applications.

Shops Needing Double-Ended Cobalt Tooling

Machinists who want a cobalt substrate with TiCN finish for extended tool life in finishing passes will find this suitable. The zero corner radius and center-cutting geometry support precise square-bottom cuts. Buyers requiring higher flute counts for roughing, larger diameters for heavy material removal, or carbide substrates for abrasive alloys should evaluate other tooling options.

Direct Shank Fit in 3/8 Inch Holders

The 3/8 inch shank diameter matches the cutting diameter, allowing direct clamping in standard collets or end mill holders without reduction sleeves. The double-ended design effectively provides two tools per holder change. Operators must verify machine rigidity and workholding to prevent chatter at the 30-degree helix, as vibration is the primary cause of premature edge wear or poor surface finish.

Highlights

  • Cobalt construction resists wear for longer tool life
  • TiCN coating reduces friction and extends cutting performance
  • Double-ended design provides two cutting edges per tool
  • 30-degree helix angle promotes smooth chip evacuation
  • Right-hand cutting direction suits standard milling operations

Specifications

BrandCleveland
TypeHole, Drill, Bore & Wire Gauges

Questions about this item

What collet or holder size matches the 3/8 in. shank on this double-end mill?

Use a 3/8 in. collet, end-mill holder or shrink-fit chuck that accepts a 3/8 in. shank; the tool’s shank diameter is exactly 3/8 in.

Will the 30-degree helix angle work with the older manual knee mill I keep in the shop?

Yes, a 30-degree helix is standard for general-purpose cobalt end mills and cuts smoothly on both manual and CNC knee mills.

How can I verify the TiCN coating is intact and the corners are truly square after the first cut?

Visually inspect the coating for uniform grey-violet colour and measure the corner with a square or comparator; a sharp .000 in. radius should show no visible fillet.

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