Hertel E6249014 Ball End Mill 0.2188 in 2 Flute Carbide Tin

Product Description

The HERTEL E6249014 is a single-end ball end mill designed for precision milling operations in metal, composites, and engineered plastics. Built from solid carbide with a titanium nitride (TiN) coating, it offers improved wear resistance and tool life compared to uncoated high-speed steel alternatives. The 0.2188-inch cutting diameter and 2-flute geometry make it well suited for profiling, contouring, and slot milling in tight-tolerance applications. Right-hand cutting and right-hand flute direction are standard for conventional CNC and manual milling setups. At 2.5 inches overall length with a 0.625-inch length of cut, this tool fits a broad range of machining centers and knee mills without excessive overhang.

This end mill is used in job shops, tool rooms, and production machining environments where small-diameter ball profiling is required. Typical applications include 3D contouring on mold cavities, die work, and part features that demand a consistent ball-nose radius. The 0.25-inch shank diameter fits standard ER collets and end mill holders commonly found on vertical machining centers and CNC routers. It is installed and changed out by machinists and tool crib technicians as part of normal tooling rotation.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• TiN coating reduces friction and extends tool life between regrinds
• 2-flute design provides chip clearance for slotting and ramp entry
• Ball-nose geometry enables 3D contouring and radius floor blending
• Right-hand cut and right-hand helix for conventional CNC spindle compatibility
• Single-end configuration - no reversing required, straightforward tool change

Compatibility

Fits standard 0.25-inch end mill holders and ER collet chucks. Designed as a direct-fit solid carbide ball end mill for vertical machining centers, CNC routers, and manual knee mills accepting a 0.25-inch shank diameter.

Installation Notes

Install in a clean, undamaged collet or end mill holder and torque the retention nut according to the toolholder manufacturer specification. Power down and lock out the spindle before changing tooling. Inspect the shank for runout after seating; excessive runout accelerates edge wear on small-diameter carbide. Avoid side-loading the tool beyond the rated depth of cut, as solid carbide is brittle and susceptible to chipping under shock loading.