Seco 00072788 Laydown Threading Insert 22NR CP500

Product Description

The SECO 00072788 is a laydown threading insert engineered for internal API V thread cutting at 4 threads per inch (TPI). Built from solid carbide with a TiAlN/TiN coating applied via PVD process, this insert delivers consistent thread form across a wide range of workpiece materials. The 22NR insert style seats in compatible right-hand toolholders for internal threading operations. It carries a 60-degree included angle and a 0.038-inch corner radius, meeting API V thread standard requirements. The CP500 grade designation places it in the Snap Tap series, optimized for controlled-wear performance in threading applications on pipe, coupling, and connection geometry.

This insert is used in CNC turning and threading operations targeting API V internal threads, commonly found in oil-country tubular goods (OCTG), pipe couplings, and downhole tool components. The right-hand cut orientation suits standard lathe spindle direction. Compatible workpiece material codes include K, M, N, P, and S, covering cast iron, stainless steel, non-ferrous metals, carbon and alloy steels, and heat-resistant superalloys. A licensed machinist or CNC programmer familiar with API thread specifications should verify thread form and fit against the applicable API standard prior to production runs.

Key Features

• Solid carbide substrate with TiAlN/TiN PVD coating for wear resistance across universal material groups
• 22NR insert style, right-hand cut for internal API V 0.038R threading
• 4 TPI thread pitch for API pipe and coupling thread forms
• 0.5000-inch (1/2 inch) inscribed circle, 0.1854-inch thickness for laydown seating
• CP500 grade in the Snap Tap series, ISO-standard compliant geometry
• 60-degree included angle with 0.9650-inch decimal corner radius

Compatibility

Designed for use in 22NR-style laydown threading toolholders accepting a 1/2-inch inscribed circle insert. Suited for internal API V thread forms at 4 TPI. Verify toolholder pocket geometry and API thread specification requirements before use.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine before seating or removing the insert. Use the appropriate torx or hex key specified by the toolholder manufacturer to secure the insert clamp to the correct seating torque per toolholder documentation. Confirm insert orientation and hand designation match the programmed cutting direction before resuming machine operation.