Description

The SECO 00077842 is a solid carbide laydown threading insert engineered for right-hand internal Acme thread cutting at 16 threads per inch. The insert carries a PVD-applied TiAlN/TiN coating that extends tool life in demanding threading operations by reducing heat buildup and edge wear. With a 9.53 mm inscribed circle and a thickness of 3.47 mm (0.1366 inches), the insert seats securely in compatible toolholders designed for the 16NR insert style. Machinists and CNC turning specialists install this insert for precision Acme thread profiling on internal bores in production and job-shop environments.

This insert is suited for internal Acme threading applications in ferrous and non-ferrous materials where consistent thread geometry is required. The Acme thread standard is common in lead screws, jacks, and linear motion components. The SECO CP500 grade is designed to perform under interrupted-cut and continuous-cut conditions in threading operations. Packaging is sold in single-unit quantities with a minimum order of two units.

Key Features

Solid carbide substrate in SECO CP500 grade for threading durability
PVD TiAlN/TiN coating reduces cutting-edge wear and thermal load
16 TPI Acme thread profile for right-hand internal threading
16NR insert style fits standard 16NR-compatible toolholders
9.53 mm inscribed circle for stable insert seating
Thickness of 3.47 mm (0.1366 inches) for precise laydown positioning

Compatibility

Designed for use with toolholders accepting the 16NR insert style configured for right-hand internal Acme threading operations.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine in a locked-out, powered-down state before any insert change. Seat the insert fully in the toolholder pocket and torque the clamping screw according to the toolholder manufacturer’s specifications. Inspect the insert seat for chips or debris before securing the insert to ensure accurate thread form. Verify thread pitch and hand orientation against job requirements before commencing the threading cycle.