Hertel E2051028 Square End Mill 7/16 in 4 Flute Cobalt

Product Description

The HERTEL E2051028 is a double-end cobalt square end mill designed for milling operations on ferrous and hardened materials where high-speed steel falls short. Built from M42 cobalt high-speed steel, it delivers greater heat resistance and edge retention compared to standard HSS tooling. The cutting diameter is 7/16 inches, with a 1 inch length of cut and a 1/2 inch shank diameter. The four-flute configuration and 30-degree right-hand helix provide a balance of chip evacuation and surface finish quality. Overall length is 4-1/8 inches. The bright, uncoated finish allows for easy wear inspection during use. This tool is installed and operated by machinists and toolroom technicians in manual mills and CNC milling centers.

This end mill is suited for general milling, slotting, and peripheral cutting applications in job shops, tool rooms, and production environments. The double-end design extends tool life by providing two usable cutting ends, reducing cost-per-cut. It is appropriate for use on steel, stainless steel, cast iron, and other ferrous workpiece materials where cobalt tooling is the specified grade. The regular-length geometry makes it well suited for standard-depth pocketing and profiling passes without excessive overhang.

Key Features

• M42 cobalt high-speed steel construction for improved heat and wear resistance over standard HSS
• Double-end design provides two cutting ends, extending usable tool life
• Four flutes with 30-degree right-hand spiral helix for efficient chip flow and surface finish
• 7/16 inch cutting diameter with 1 inch length of cut
• Bright, uncoated finish for straightforward wear monitoring
• Right-hand cutting direction compatible with conventional milling machine spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling selection for milling machines accepting a 1/2 inch shank diameter end mill holder, collet chuck, or Weldon-style holder.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank in a properly sized end mill holder or collet to the full recommended engagement depth before operation. Ensure the spindle is fully stopped and the machine is locked out before inserting or removing the tool. Do not use this end mill for center drilling or plunge cutting, as this tool is non-centercutting.