Kennametal 7102423 Corner Radius End Mill 3/8 in 8 Flute

Product Description

The KENNAMETAL 7102423 is a solid carbide corner radius end mill from the HARVI IV series, engineered for high-performance milling in demanding metal-cutting applications. With a 3/8 inch cutting diameter and 8 flutes, this tool delivers high feed rates and superior surface finishes in hardened steels, stainless steels, and high-temperature alloys. The 0.39 mm (0.0150 inch) corner radius reduces edge chipping and extends tool life in interrupted or continuous cuts. An AlCrN coating provides thermal and oxidation resistance, making this end mill well-suited for dry or near-dry machining environments. Licensed machinists and CNC operators in production shops and tool rooms are the primary users of this tooling.

This end mill is designed for use in vertical and horizontal machining centers running high-speed finishing and semi-finishing operations. The 3/4 inch length of cut and 2.5 inch overall length make it appropriate for shallow-to-medium depth pocketing, profiling, and contouring. The straight cylindrical 3/8 inch shank mounts directly into standard ER collet chucks, end mill holders, and shrink-fit toolholders. The HARVI IV series geometry targets aerospace, die and mold, and precision automotive component machining where tight tolerances and long tool life are required.

Key Features

• 8-flute design enables higher feed rates and smoother finishes compared to 4- or 6-flute tools
• AlCrN coating provides oxidation and heat resistance for dry or minimum-quantity lubrication machining
• Variable helix and variable index geometry reduce harmonic vibration and chatter
• 0.39 mm corner radius protects cutting edges and extends tool life on hardened workpieces
• Coolant-through capability supports internal coolant delivery for deep-pocket and high-heat applications
• Chipbreaker geometry aids chip evacuation in long-run production cuts

Compatibility

Part of the KENNAMETAL HARVI IV series. Fits standard 3/8 inch straight-bore end mill holders, ER collet chucks, and shrink-fit toolholders used in CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolsetter. Ensure the machine spindle is fully stopped and the tool-change interlock is engaged before handling or changing tooling. Confirm holder bore cleanliness and proper runout before tightening to the holder manufacturer torque specification. This is a non-centercutting end mill and should not be used for direct plunge entry.