Hertel E2050005 Square End Mill 5/64 in 2 Flute Cobalt

Product Description

The HERTEL E2050005 is a cobalt square end mill designed for precision milling operations in ferrous and hard-to-machine materials. Built from M42 cobalt high-speed steel, it offers a 5/64 inch (0.0781 inch) cutting diameter with a 5/16 inch length of cut and a 3/8 inch shank diameter. The overall length is 3-1/16 inches. The double-end design delivers two usable cutting ends, extending tool life and reducing per-cut cost. The 30-degree helix angle and spiral flute geometry promote chip evacuation and smooth cutting action. This tool is centercutting, allowing plunge entry into the workpiece. Machinists and tool-and-die professionals use this end mill in manual and CNC milling applications.

This end mill is suited for use in job shop, production machining, and maintenance-repair environments where cobalt tooling is preferred over carbide for its toughness and resistance to chipping. The uncoated finish makes it a reliable choice for general-purpose milling in steels, stainless steels, and alloy materials. The right-hand cut and right-hand flute configuration is standard for conventional vertical milling machines and CNC machining centers. The regular length classification fits most standard tool holders with a 3/8 inch collet or end mill holder.

Key Features

• M42 cobalt steel construction for improved heat and wear resistance over standard HSS
• Double-end design provides two cutting ends per tool
• Centercutting capability allows direct plunge milling
• 30-degree helix spiral flute promotes efficient chip evacuation
• Right-hand cut and right-hand flute for standard milling machine compatibility
• Uncoated finish suitable for use with cutting fluids in a wide range of ferrous materials

Compatibility

Designed as a standard-shank replacement end mill for use in 3/8 inch collets, end mill holders, and compatible CNC or manual milling machine spindles requiring a 5/64 inch diameter square end mill.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the machine spindle is fully powered down and locked out before changing tooling. Secure the shank fully within the collet or holder to the recommended engagement depth before tightening. Inspect the cutting edges for chips or wear before each use, as damaged tooling can cause workpiece defects or tool breakage.