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Bright uncoated cobalt end mill, 5/16 inch diameter, two flutes, single square end, 3/8 inch shank

Cleveland Golf

Cleveland Golf Cobalt End Mill 5/16 2 Flute Single End CC

SKU CH-Y29A-20BK8

A 5/16-inch, two-flute cobalt end mill with a 30-degree helix for general-purpose finishing

  • Product typeHole, Drill, Bore & Wire Gauges
  • Cobalt construction resists heat during finishing cuts
  • Two-flute design clears chips efficiently in slots
  • 30-degree helix angle promotes smooth cutting action
  • Bright uncoated finish suits general-purpose milling tasks
  • 5/16-inch diameter matches standard fractional tooling requirements

Cleveland Golf Cobalt End Mill 5/16

The Cleveland Golf Cobalt End Mill 5/16 is a general-purpose square end mill designed for milling operations. Its cobalt construction provides heat resistance for finishing cuts. The tool features a 5/16 inch milling diameter and a 3/8 inch shank. It suits machinists and fabricators working with steel or alloys.

Two-flute finishing tool for specific setups

This end mill suits users needing a two-flute, single-end cutter with a 30-degree helix angle for finishing passes. The right-hand cutting direction and bright uncoated finish match standard milling requirements. It is not for buyers who need a coated tool for higher speeds, a multi-flute rougher, or a different shank diameter for their holder.

5/16 inch milling diameter decides fit

The 5/16 inch milling diameter is the critical specification that determines whether this cutter matches the required feature size. A 9/16 inch length of cut and 2-1/2 inch overall length define the reach. Verify the 3/8 inch shank fits your collet or holder before purchase.

How it compares

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

Price $13.99
Cheaper than about 70% of the 2,474 comparable items (median $23.99).

Specifications

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

Questions about this item

Should I choose the 5/16 inch diameter or a different size for finishing work?

The 5/16 inch milling diameter with a 9/16 inch length of cut is suited for finishing passes in fractional-inch setups; select this size when your feature width matches the cutter diameter.

What does the 30 degree helix angle do when the tool is in the spindle?

A 30 degree helix angle provides a balanced cutting action that reduces chatter and improves surface finish during peripheral milling operations.

How does the 3/8 inch shank diameter limit the toolholders I can use?

The 3/8 inch shank fits standard 3/8 inch collets, end mill holders and Weldon flats; it cannot be clamped in larger 1/2 inch or metric holders without a reducing sleeve.

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