Hertel EM250024 Ball End Mill 0.375 in 4 Flute Carbide

Product Description

The HERTEL EM250024 is a single-end ball end mill designed for precision milling operations in ferrous and non-ferrous metals. Built from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride), it handles high-heat applications where tool life and surface finish are critical. The 0.375-inch cutting diameter and 4-flute geometry deliver efficient chip evacuation and smooth finishes in profiling, contouring, and slotting work. The 30-degree helix angle balances cutting force and chip flow across a 1-inch length of cut. This tool is suited for use in CNC machining centers and manual mills operated by machinists and tool-and-die professionals.

This end mill is intended for use in shop environments requiring tight-tolerance milled profiles in hardened steels, stainless, titanium, and similar materials where AlTiN coating provides thermal resistance. The 3/8-inch shank diameter fits standard collets and end mill holders. The 2.5-inch overall length provides adequate reach for most standard workpiece setups without excessive overhang. Right-hand cut and right-hand flute direction make this a conventional configuration compatible with standard CNC spindle setups.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• AlTiN coating provides thermal barrier for high-speed dry or semi-dry cutting
• 4-flute design improves surface finish and feed rate capacity over 2-flute options
• 30-degree helix angle balances cutting forces and promotes chip evacuation
• Right-hand cut, right-hand flute, single-end configuration
• Ball nose profile suited for 3D contour milling and radius floor features

Compatibility

Designed as a direct-fit replacement or standard selection for CNC machining centers and manual mills accepting a 3/8-inch straight shank end mill holder or collet.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before inserting or removing the tool. Seat the shank fully in the collet or holder to the recommended engagement depth per the toolholder manufacturer guidelines. Minimize overhang beyond what the job requires to reduce vibration and deflection.