Seco 00049961 Threading Insert 8 Tpi Npt Carbide CP500

Product Description

The SECO 00049961 is a laydown-style external threading insert designed for cutting NPT (National Pipe Taper) threads on a lathe or CNC turning center. Part of the Snap-Tap series, it carries the CP500 manufacturer grade and is manufactured from solid carbide with a PVD-applied TiAlN/TiN finish. The insert cuts at 8 threads per inch with a 60-degree included angle and a 3/8 inch inscribed circle. At 0.1366 inches thick, it seats firmly in compatible laydown threading toolholders. Machinists and CNC operators working with pipe fittings, adapters, and threaded connectors reach for this insert when chasing or generating NPT profiles on a range of workpiece materials.

This insert is rated for right-hand external NPT threading operations and is classified for use on a broad range of workpiece materials, including cast iron, non-ferrous metals, non-metals, steel, and heat-resistant or super alloys, as indicated by the universal material codes K, M, N, P, and S. It is well-suited for job shops and production environments where consistent NPT thread form accuracy is required across multiple part runs. The Snap-Tap series designation indicates compatibility with the corresponding Snap-Tap toolholder system. Minimum order quantity is 2 units; each package contains 1 insert.

Key Features

• Solid carbide construction with PVD TiAlN/TiN coating for extended tool life and heat resistance
• CP500 grade rated for universal workpiece materials including steel, cast iron, non-ferrous, and superalloys
• 8 TPI NPT profile with 60-degree included angle for accurate pipe thread geometry
• Right-hand external thread orientation for standard NPT male thread applications
• 3/8 inch inscribed circle with 0.1366 inch thickness for stable laydown-style seating
• ISO-standard insert geometry; part of the Snap-Tap series

Compatibility

Designed for use in Snap-Tap series laydown threading toolholders that accept 16ER-style inserts. Compatible with machines and setups requiring external NPT threading at 8 TPI.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the manufacturer-recommended torx or insert-clamp wrench to secure the insert in the toolholder pocket — do not overtighten by hand or with non-rated tools. Confirm thread form and pitch with a calibrated NPT thread gauge before running production parts.