Hertel E699924522 Ball End Mill 0.2188 in 4 Flute Carbide

Product Description

The HERTEL E699924522 is a single-end ball end mill designed for contour milling, slotting, and 3D profiling operations in ferrous and non-ferrous materials. Built from solid carbide, it offers the rigidity and wear resistance required for high-speed machining applications. The cutting end measures 0.2188 inches in diameter with a 0.5-inch length of cut and features a titanium nitride (TiN) coating that reduces friction and extends tool life. Four right-hand flutes with a right-hand cutting direction provide efficient chip evacuation and a smooth surface finish. Machinists and CNC operators working in job shops, tool rooms, and production environments are the primary users of this tool.

This ball end mill is suited for light to moderate material removal in milling centers and CNC machining operations requiring a small-diameter finish tool. The 0.2188-inch diameter makes it appropriate for detailed contouring, radius profiling, and die-mold work where tight tolerances and fine surface geometry are required. The 1/4-inch shank diameter is a standard size compatible with common collet systems found on vertical and horizontal machining centers.

Key Features

• Solid carbide construction for high rigidity and wear resistance in demanding cutting conditions
• TiN coating reduces tool friction and extends cutting life compared to uncoated carbide
• 4-flute, right-hand geometry supports efficient chip removal and improved finish quality
• Single-end design with a 0.5-inch length of cut suited for shallow-to-medium depth profiling
• Standard 1/4-inch shank diameter fits common ER and straight-bore collet systems
• 2-inch overall length provides reach while maintaining tool stiffness at this diameter

Compatibility

Designed for use in CNC machining centers and manual mills equipped with 1/4-inch collet or end mill holders. The 1/4-inch shank is a standard size suitable for ER16 and ER20 collet systems as well as standard end mill holders accepting 1/4-inch shanks.

Installation Notes

This tool should be installed and changed by a qualified machinist or CNC operator following the machine manufacturer's tooling procedures. Ensure the spindle is fully stopped and the machine is powered down or in an e-stop state before changing tooling. Seat the shank fully into the collet or holder to the minimum insertion depth recommended by the holder manufacturer to prevent tool pullout under cutting loads. Verify runout with a dial indicator after tightening to confirm concentricity before beginning a cutting operation.