Hertel E2053008 Square End Mill 0.125 in 4 Flute Cobalt

Product Description

The HERTEL E2053008 is a cobalt square end mill designed for milling operations requiring precise material removal in metalworking applications. Built from M42 cobalt high-speed steel, this double-end tool delivers durability and heat resistance in demanding cutting environments. It features a 0.125-inch mill diameter, a 0.375-inch length of cut, and a 30-degree helix angle with a spiral flute geometry. Four flutes provide a balance of chip evacuation and surface finish quality. The tool is centercutting, allowing plunge cuts in addition to standard peripheral milling. Both cutting ends are right-hand cut with right-hand flute direction. Licensed machinists and tool-and-die professionals are the primary installers of this end mill.

This end mill is suited for use in CNC machining centers and manual milling machines operating on ferrous and non-ferrous metals, stainless steel, and high-temperature alloys where cobalt tooling is preferred over standard high-speed steel. The 0.375-inch shank diameter provides secure tool holding in standard collet chucks and end mill holders. With an overall length of 3.0625 inches and a regular length classification, it fits conventional toolholding setups without requiring extended-reach adapters. The double-end configuration offers two usable cutting ends, extending tool life between replacements.

Key Features

• M42 cobalt construction for improved heat and wear resistance over standard HSS
• Double-end design provides two cutting ends per tool
• Centercutting geometry allows plunge milling without a pre-drilled pilot hole
• 30-degree helix angle with spiral flute for efficient chip evacuation
• Four flutes balance chip clearance with cutting edge contact
• Right-hand cut, right-hand flute, uncoated finish

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 0.375-inch shank collet chucks and end mill holders used in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist familiar with tool holding and speeds-and-feeds selection for cobalt end mills. Ensure the spindle is fully powered down and locked before changing tooling. Confirm the collet or holder is clean and free of debris before seating the shank to the recommended engagement depth. Follow the machine manufacturer guidelines and applicable shop safety standards when setting up tooling.