Hertel E299914084 Square End Mill 7/32 in 2 Flute Cobalt

Product Description

The HERTEL E299914084 is a cobalt square end mill designed for milling operations in ferrous and hard materials where high-speed steel tooling falls short. Built from M42 cobalt high-speed steel, it delivers improved heat and wear resistance during aggressive cuts. The cutter features a 7/32 inch (0.2188 inch) diameter, a 1-1/4 inch length of cut, and a 3/8 inch shank diameter, with an overall length of 3-1/16 inches. With 2 flutes and a 30-degree helix angle, it balances chip evacuation and cutting edge strength in a compact profile suited to tight-tolerance work. Machinists and tool-and-die professionals use this end mill in manual mills and CNC machining centers.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous metals, stainless steel, and other tough materials that benefit from cobalt tooling over standard HSS. The centercutting geometry allows direct plunge entry, adding versatility in setups where a separate center drill or pilot is impractical. The right-hand cut and right-hand spiral flute configuration is standard for conventional vertical milling setups. Uncoated finish makes it a straightforward drop-in for general-purpose cobalt end mill applications in job shop and maintenance machining environments.

Key Features

• M42 cobalt high-speed steel construction for improved heat resistance vs. standard HSS
• Centercutting design allows direct plunge milling without a pilot hole
• 30-degree helix angle balances chip flow and cutting edge stability
• 2-flute geometry provides good chip clearance in slotting and pocketing
• Right-hand cut, right-hand flute — standard orientation for most vertical milling setups
• Uncoated finish compatible with a wide range of cutting fluids and coolants

Compatibility

Designed as a standard 3/8 inch shank square end mill for use in collet chucks, end mill holders, and milling machine spindles accepting 3/8 inch straight shanks. No specific OEM system compatibility was provided in the product data.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle and tool holder are clean and free of chips before seating the shank. Torque the set screw or collet nut to the tool holder specification and verify runout with a dial indicator before cutting. Always confirm spindle direction matches the right-hand cut orientation of this tool before engaging the workpiece.