Seco 02206171 Laydown Threading Insert 3.5 Tpi Acme

Product Description

The SECO 02206171 is a solid carbide laydown threading insert designed for cutting internal Acme threads at 3.5 threads per inch (TPI). Built to the 20NR insert style and manufactured in SECO grade CP500, this insert features a TiAlN/TiN PVD coating applied for enhanced wear resistance and tool life across a wide range of workpiece materials. With a 0.248-inch thickness and a 1/2-inch inscribed circle, it seats in compatible 20NR-style toolholders for right-hand internal threading operations. Machinists and CNC lathe operators use this insert for precision Acme thread profiles in production and job-shop environments.

This insert is suited for internal Acme threading applications on a broad range of materials, including steels, stainless steels, non-ferrous metals, and cast materials, consistent with its universal primary workpiece material rating (ISO material codes K, M, N, P, and S). It belongs to the SECO Snap Tap series and is intended for use in lathe or turning center applications where right-hand internal thread forms are required. The 29-degree included angle conforms to the Acme thread standard, making it appropriate for lead screw, power transmission, and actuator threading work.

Key Features

• Solid carbide substrate with CP500 grade for rigidity and wear resistance
• TiAlN/TiN PVD coating for extended tool life across universal workpiece materials
• 3.5 TPI Acme thread form with 29-degree included angle
• Right-hand internal thread orientation
• 1/2-inch inscribed circle, 0.248-inch thickness for 20NR-style toolholder seating
• ISO-compliant insert geometry

Compatibility

Designed for use in 20NR-style laydown threading toolholders compatible with the Snap Tap series. Verify toolholder and pocket specifications before installation to confirm proper insert seating and clamping.

Installation Notes

Installation is performed by qualified machinists or CNC lathe operators. Power down and de-energize the machine before changing inserts. Ensure the insert pocket and clamping screw are clean and free of debris before seating the insert. Follow the toolholder manufacturer torque guidelines for the clamping screw and confirm insert orientation matches the required right-hand internal thread direction before resuming operation.