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The OSG 1662501817 is a solid carbide helical flute thread mill designed for cutting 5/8-11 UNC internal and external threads. With 5 right-hand flutes and an EgiAs coating, this tool delivers efficient chip evacuation and extended tool life in demanding machining environments. The 0.421-inch cutting diameter and 1.454-inch length of cut make it well-suited for threading operations requiring precision and consistency. Machinists and CNC operators install this tool in milling centers where a single cutter handles both thread profile and helix in one pass, reducing tool changes and setup time.
This thread mill is intended for use in CNC milling applications where 5/8-11 UNC threads are required in ferrous and non-ferrous materials. Its solid carbide construction and EgiAs coating make it appropriate for production and job-shop environments running moderate to high cutting speeds. The right-hand thread direction and right-hand flute orientation suit standard climb-milling toolpaths programmed for internal or external thread cycles.
Designed as an OEM-style thread milling tool for CNC machining centers capable of helical interpolation, suitable for applications requiring 5/8-11 UNC thread profiles in both internal and external configurations.
Installation and operation should be performed by a qualified CNC machinist or tooling specialist. Secure the 1/2-inch shank in a balanced, runout-minimized toolholder and verify tool projection before running a program. Confirm that the machining center supports helical interpolation before executing thread mill cycles. Do not exceed the tool manufacturer's recommended cutting parameters for the workpiece material.
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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