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The SECO 00064397 is a laydown threading insert designed for internal UN thread cutting at 11 threads per inch. Built from solid carbide in the micrograin grade, this insert carries a TiAlN/TiN coating applied via PVD process, providing wear resistance across a wide range of workpiece materials. With a 3/8-inch inscribed circle and a thickness of 0.1366 inches, it fits standard laydown toolholders in the 16NR insert style. The CP500 manufacturer grade designation targets universal material compatibility, making this insert a reliable choice for production threading on CNC lathes and turning centers operated by machinists and tool-and-die professionals.
This insert is suited for right-hand internal threading operations on UN-standard threads at 60-degree included angle. The universal primary workpiece material classification covers cast iron, non-ferrous metals, non-metals, steel, and superalloys, supporting a broad range of threading applications in job shop and production environments. It belongs to the Snap Tap series and conforms to ISO standards. Typical applications include threading bores, nuts, and internal features on turned components across light to medium machining passes.
Designed for use with 16NR-style laydown threading toolholders configured for right-hand internal UN thread applications.
Installation is performed by a machinist or toolroom technician on a CNC lathe or manual turning center. Ensure the machine spindle is fully stopped and the toolholder is properly secured before seating or replacing the insert. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer to avoid insert movement or breakage during threading passes. Inspect the insert seating pocket for chips or debris before installation to maintain proper insert orientation and thread accuracy.
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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