Hertel E2053048 Square End Mill 3/4 in 4 Flute Cobalt

Product Description

The HERTEL E2053048 is a cobalt square end mill designed for milling operations in ferrous and hard materials where high heat resistance is required. Built from M42 cobalt high-speed steel, this end mill features a 3/4-inch cutting diameter, four flutes, and a 30-degree right-hand spiral helix for efficient chip evacuation and smooth cutting action. The centercutting geometry allows plunge cuts as well as conventional peripheral and slot milling. It is installed by machinists and tooling professionals in manual mills, CNC machining centers, and knee mills across production and job-shop environments.

This end mill is suited for ferrous metals, alloy steels, stainless steel, and similar hard-to-machine materials where cobalt tooling provides a durability advantage over standard HSS. The regular-length designation and 1-5/8-inch length of cut make it practical for general-purpose side milling, slotting, and profiling operations. The bright uncoated finish is appropriate for applications where lubrication or coolant is used and a coating is not required. This tool fits standard 3/4-inch collets and tool holders common in most milling setups.

Key Features

• M42 cobalt HSS construction provides superior heat and wear resistance compared to standard HSS grades
• 3/4-inch cutting diameter with matching 3/4-inch shank for direct collet or end mill holder mounting
• Four-flute design balances material removal rate with surface finish quality
• 30-degree right-hand helix promotes positive chip flow and reduces cutting pressure
• Centercutting geometry allows direct plunge entry without pre-drilling
• Bright uncoated finish suitable for wet or flood-cooled machining applications

Compatibility

Designed as an OEM-style replacement or direct substitute for standard 3/4-inch cobalt square end mills used in manual and CNC milling machines accepting 3/4-inch straight-shank tool holders or collets.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully powered down and the drawbar or tool holder is properly secured before mounting or removing end mills. Use the appropriate collet size or end mill holder torqued to machine manufacturer specifications. Inspect the shank and collet bore for chips or debris before seating the tool to prevent runout.