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Bright uncoated cobalt end mill, 1/8 inch diameter, four flutes, double square ends, 3/8 inch shank

Cleveland Golf

Cleveland Golf Cobalt End Mill 1/8 4 Flute Double Square End CC

SKU CH-5F2M-FHGQY

A 1/8-inch cobalt square end mill with four flutes and double-ended design for finishing operations

  • TypeHole, Drill, Bore & Wire Gauges
  • Cobalt construction resists wear during finishing passes
  • Four-flute geometry produces smooth surface finishes on workpieces
  • Double-ended design provides two cutting ends per tool
  • 30-degree helix angle balances chip evacuation with edge strength
  • Bright uncoated finish suits general-purpose milling applications

Cleveland Cobalt End Mill 1/8 Inch

This cobalt square end mill has a 1/8 inch milling diameter and four flutes for general-purpose finishing. The double-end design provides two cutting ends on a single 3/8 inch shank. A 30-degree helix angle and right-hand cutting direction suit conventional milling operations. Bright uncoated finish keeps the tool ready for resharpening.

Replaces worn single-end cobalt mills

When a single-end mill dulls, this double-end tool effectively doubles the available cutting length without changing holders. The jump is worth it if your workflow runs frequent finishing passes in steel or exotic alloys and you want fewer tool changes. The 3/8 inch overall length of cut per end matches many standard holder depths. Builders who need roughing geometry or coated performance for high-heat materials should look elsewhere.

Limited by uncoated cobalt substrate

The bright finish offers no thermal barrier, so cutting speeds must stay within cobalt’s uncoated limits to avoid premature wear. A 30-degree helix and zero corner radius restrict chip evacuation in deep slots or heavy radial engagement. The 3-1/16 inch overall length caps reach in deep cavities. Machines without rigid spindles or flood coolant will see reduced tool life.

Highlights

  • Cobalt construction resists wear during finishing passes
  • Four-flute geometry produces smooth surface finishes on workpieces
  • Double-ended design provides two cutting ends per tool
  • 30-degree helix angle balances chip evacuation with edge strength
  • Bright uncoated finish suits general-purpose milling applications

Specifications

BrandCleveland
TypeHole, Drill, Bore & Wire Gauges

Questions about this item

What shank diameter does the 1/8-inch cobalt end mill need for my tool holder?

The tool has a 3/8-inch shank diameter, so your holder or collet must accept that size.

How do I correctly install the double-end cutter in a right-hand spindle?

Mount the cutter with the flutes facing the rotation direction; the 30-degree right-hand helix cuts only when the spindle turns clockwise.

When should I replace the uncoated cobalt end mill during finishing work?

Replace it once the bright finish shows visible wear or the .000-inch corner radius no longer holds tolerance.

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