Hertel E2110024 Ball End Mill 0.375 in 2 Flute Cobalt

Product Description

The HERTEL E2110024 is a single-end cobalt ball end mill designed for milling contoured surfaces, slots, and complex 3D profiles on ferrous and non-ferrous workpieces. Built from M42 cobalt high-speed steel, the tool delivers heat and wear resistance well beyond standard HSS tooling, making it suitable for harder materials and higher feed rates. The cutter measures 0.375 inches in diameter with a 0.75-inch length of cut, a 3/8-inch shank diameter, and a 2.5-inch overall length. The 30-degree right-hand spiral flute geometry promotes chip evacuation and smooth cutting action. It ships uncoated and is used as-ground from the manufacturer.

This ball end mill is suited for use in vertical machining centers, knee mills, and manual or CNC milling operations where a full-radius end profile is required. Typical applications include die and mold work, finishing passes on contoured surfaces, and profiling operations in tool rooms and production shops. The regular-length geometry keeps the tool stiff for general-purpose work at this diameter range. It is installed by machinists and tool-and-die professionals in standard end mill holders, collet chucks, or shrink-fit toolholding compatible with a 3/8-inch shank.

Key Features

• M42 cobalt HSS construction for improved heat resistance and tool life over standard HSS
• Ball-nose end profile for full-radius cuts and 3D contouring
• 0.375-inch cutting diameter with 0.75-inch length of cut
• 30-degree right-hand spiral flutes for efficient chip evacuation
• 2-flute design suited for slotting and profiling in a range of materials
• Uncoated finish allows for resharpening and custom coating if required
• Single-end configuration; regular length for rigidity at this diameter

Compatibility

Designed for use in any standard 3/8-inch end mill holder, collet chuck, or milling toolholder accepting a 3/8-inch straight shank.

Installation Notes

Installation is performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before securing the shank. Torque the set screw or collet nut to the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a cut, as excessive runout accelerates wear on small-diameter cobalt tooling.