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The HARVEY TOOL 17109-C3 is a solid carbide corner rounding end mill designed to produce consistent, accurate radii on workpiece edges in precision machining applications. Built with an AlTiN coating for improved heat resistance and tool life at elevated cutting speeds, this double-end mill measures 5/16 inches in diameter with a matching 5/16 inches shank diameter and a 7/64 inches corner radius. The double-end configuration offers two usable ends, extending tool life between changes. With 2 flutes and a flared series geometry, it suits finish-pass edge-breaking and radius forming work in hard metals and alloys. CNC machinists and tool-and-die professionals are the primary users.
This end mill is suited for edge rounding and radius profiling operations on milling machines and CNC machining centers in job shops, tool rooms, and production environments. It performs well in ferrous and hardened materials where the AlTiN coating provides thermal protection. The 7/64 inches radius and 0.0580 inches tip diameter make it appropriate for tight-tolerance radius work where edge geometry consistency is critical. The flared corner rounding series is typically applied in finishing passes rather than heavy stock removal.
Designed as a standard shank corner rounding end mill compatible with 5/16 inches collets and tool holders on CNC milling machines and manual knee mills.
Installation should be performed by a qualified machinist following the machine tool manufacturer's setup procedures. Confirm the tool holder collet size matches the 5/16 inches shank diameter before seating the tool. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Verify runout after installation and before beginning a cut to protect both the workpiece and the tool.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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