Hertel E2031032 Square End Mill 1/2 in 4 Flute Cobalt

Product Description

The HERTEL E2031032 is a cobalt square end mill designed for demanding milling operations in ferrous and difficult-to-machine materials. Built from M42 cobalt high-speed steel, it delivers elevated heat resistance and edge retention compared to standard M2 HSS tooling. The cutter features a 0.5-inch diameter, a 1.25-inch length of cut, and a 30-degree right-hand spiral flute geometry that promotes efficient chip evacuation. This is a single-end, uncoated tool in a regular length configuration, suited for machinists and tool-and-die professionals running manual or CNC milling equipment.

This end mill is intended for slot milling, profiling, and peripheral milling in shop and production environments. The 4-flute design provides a good balance of chip clearance and surface finish on steel, stainless, and high-temperature alloys. With a 0.5-inch shank diameter matching the cutter diameter, it seats securely in standard end mill holders, collet chucks, and Weldon-style holders used in vertical mills and machining centers. This is a non-centercutting tool and is not suitable for plunge cutting.

Key Features

• M42 cobalt HSS construction for improved heat and wear resistance over standard HSS
• 30-degree right-hand helix promotes upward chip flow and reduces cutting forces
• 4 spiral flutes provide surface finish quality with adequate chip clearance
• Right-hand cut and right-hand flute orientation for standard spindle rotation
• Uncoated finish allows for easy resharpening by qualified tool grinders
• Regular length profile suits the majority of general milling applications

Compatibility

Designed as an OEM-style replacement or direct-use cobalt end mill for standard 0.5-inch end mill holders, collet chucks, and Weldon-style tool holders used in vertical and horizontal milling machines and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully de-energized and the machine is in a safe state before inserting or removing tooling. Seat the shank to the full recommended engagement depth in the holder and torque the set screw or collet nut per the holder manufacturer's specification. Do not use this tool for plunge cutting, as it is a non-centercutting design.