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Bright uncoated HSS square end mill, 5/8 inch diameter, two flutes, single end, right-hand helix

Cleveland Golf

Cleveland Golf End Mill HSS 5/8 2 FL SGL Sq End CC

SKU CH-HAYJ-2YEQS

A 5/8 inch high-speed steel square end mill with two flutes, 30-degree helix, and bright finish for general-purpose finishing

  • TypeHole, Drill, Bore & Wire Gauges
  • 5/8-inch cutting diameter handles medium milling tasks
  • Two-flute design clears chips efficiently in finishing passes
  • 30-degree helix angle promotes smooth cutting action
  • High-speed steel construction resists wear during general-purpose use
  • Bright uncoated finish suits a variety of workpiece materials

Square End Mill for General-Purpose Finishing

This Cleveland Golf square end mill is built from high-speed steel for general-purpose finishing tasks in a workshop. The two-flute, single-end design with a 30-degree helix angle and right-hand cutting direction suits manual and CNC milling operations. A bright, uncoated finish keeps the tool economical for routine material removal.

Replaces Worn or Undersized Fractional End Mills

The 5/8-inch diameter and 5/8-inch shank fit standard fractional tool holders, making it a direct swap for dull cutters of the same size. The 1-5/16-inch length of cut and 3-3/4-inch overall length match common job requirements. The jump is worth it when an existing tool shows flank wear or chatter that degrades surface finish quality.

Limited by Uncoated HSS in Hard

High-speed steel without coating loses hardness rapidly at elevated temperatures, restricting its practical use to softer workpiece materials. The sharp .000-inch corner radius offers no edge strengthening for heavy chip loads or interrupted cuts. Builders needing extended tool life in tough alloys or high-speed production should evaluate coated carbide alternatives instead.

Highlights

  • 5/8-inch cutting diameter handles medium milling tasks
  • Two-flute design clears chips efficiently in finishing passes
  • 30-degree helix angle promotes smooth cutting action
  • High-speed steel construction resists wear during general-purpose use
  • Bright uncoated finish suits a variety of workpiece materials

Specifications

BrandCleveland
TypeHole, Drill, Bore & Wire Gauges

Questions about this item

What shank diameter does the 5/8-inch end mill require in the tool holder?

The shank diameter is 5/8 inch, so the collet or holder must match that exact size for a secure fit.

How do you install the end mill without causing run-out or breakage?

Insert the shank fully into the collet, tighten evenly, and verify the 1-5/16-inch length of cut clears the workpiece before starting the spindle.

When should the uncoated high-speed steel cutter be replaced?

Replace it when the 30-degree helix flutes show visible wear, chipping, or when finish quality drops on finishing passes.

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