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Cobalt end mill, bright finish, two flutes, square end, single-ended, 3/8 inch shank

Cleveland Golf

Cleveland Golf Cobalt End Mill 3/8 2FL Single End CC

SKU CH-43NM-HSRWT

Two-flute cobalt end mill with 3/8 inch diameter, 9/16 inch cut length, and 30-degree helix for finishing

  • Product typeHole, Drill, Bore & Wire Gauges
  • Cobalt construction resists wear during finishing cuts
  • Two-flute design clears chips efficiently in slots
  • 30-degree helix angle reduces chatter on steel
  • Bright uncoated surface suits general-purpose milling
  • 3/8-inch shank matches standard tool holders

Cobalt End Mill 3/8 Inch Two Flute

This Cleveland Golf cobalt end mill is a fractional-inch square-end cutter built for general-purpose finishing. It measures 3/8 inch in both cutting diameter and shank diameter with a 9/16 inch length of cut and 2-1/2 inch overall length. The tool features two right-hand flutes at a 30 degree helix angle and a bright uncoated finish.

Machinists Finishing Slots And Profiles

The two-flute geometry suits machinists who need good chip clearance in slots, pockets and profile cuts on ferrous and non-ferrous materials. Cobalt substrate handles higher temperatures than high-speed steel for longer edge life. Shops requiring high metal-removal rates or heavy roughing passes should consider tools with more flutes or a roughing profile.

Bright Uncoated Surface For General Use

The bright uncoated finish keeps cost low and works across a wide range of materials without the friction characteristics of coated alternatives. Coated versions of this geometry exist for abrasive alloys or very high-speed runs where heat buildup shortens tool life.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 75% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameCleveland
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

How is the 3/8-inch shank end mill installed in a collet or holder, and what step is often missed?

Insert the 3/8-inch shank fully into a matching collet or holder, then tighten evenly; the step often missed is verifying the tool runs true at the 9/16-inch length of cut before cutting.

What maintenance or replacement will the cobalt end mill need during its service life?

The bright uncoated cobalt flutes will dull with use; plan to resharpen or replace the tool once the 30-degree helix cutting edges no longer produce a clean finish on the workpiece.

What limit appears first when the end mill is run continuously in finishing passes?

Heat buildup at the 3/8-inch diameter cutting zone typically becomes the limiting factor before tool deflection, especially with the uncoated bright finish on cobalt material.

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