Hertel E299914054 Square End Mill 1 in 2 Flute Cobalt

Product Description

The HERTEL E299914054 is a single-end, square-profile cobalt end mill designed for milling operations in ferrous and high-temperature alloy materials. Built from M42 cobalt high-speed steel, it delivers the heat and wear resistance required for demanding cuts in steel, stainless, and hardened workpieces. The tool runs a 2-flute, right-hand spiral geometry with a 30-degree helix angle, promoting efficient chip evacuation in slotting and peripheral milling. The bright, uncoated finish suits applications where coating compatibility or cost is a factor. Machinists and tool-and-die professionals use this mill in vertical and horizontal machining centers as well as manual knee mills.

This end mill fits general-purpose milling applications in job shops, maintenance machining, and production environments. The 2-flute configuration provides larger gullet capacity, making it well suited for slotting operations and softer steels where chip packing is a concern. The centercutting geometry allows plunge entry directly into the workpiece without a pre-drilled pilot hole. With a 1-inch shank diameter matching the cutter diameter, it seats directly in standard 1-inch R8, CAT, or end-mill holders without a reducer bushing.

Key Features

• M42 cobalt HSS construction for elevated heat resistance and longer tool life in ferrous materials
• 2-flute, right-hand spiral design with 30-degree helix for efficient chip evacuation in slotting
• Centercutting geometry permits direct plunge milling without a pilot hole
• Bright, uncoated finish suitable for a wide range of cutting fluids and material types
• 1-inch shank diameter matches cutter diameter, eliminating the need for a reduction collet
• Single-end configuration; one cutting end per tool

Compatibility

Designed as a standard 1-inch shank end mill compatible with R8, CAT, BT, and straight-bore end-mill holders used in vertical machining centers, CNC knee mills, and manual Bridgeport-style machines.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the holder and torque the retention fastener to the holder manufacturer specification. Confirm runout with a dial indicator before cutting, as excessive runout accelerates flute wear on cobalt tooling.