Seco 00050328 Threading Insert 16NL CP500 Carbide 48-16 Tpi

Product Description

The SECO 00050328 is a laydown threading insert designed for left-hand internal threading operations. Built from solid carbide and finished with a PVD-applied TiAlN/TiN coating, this insert carries the CP500 grade designation and is part of the Snap-Tap series. It cuts a partial profile 60-degree thread form and covers a pitch range of 0.50 mm to 1.50 mm, corresponding to 48 to 16 TPI. The inscribed circle measures 9.53 mm and insert thickness is 3.47 mm (0.1366 inches). Machinists and CNC turning specialists use this insert for precision thread cutting in a range of workpiece materials classified under ISO material groups K, M, P, and S.

This insert is suited for internal threading applications on CNC lathes and turning centers where left-hand thread forms are required. The partial profile 60-degree geometry covers unified and metric thread standards within the supported pitch range, making it a practical tooling choice for shops running mixed-material jobs. The universal workpiece material rating means it performs across cast iron, steel, stainless, and high-temperature alloys within appropriate cutting parameter windows.

Key Features

• CP500 carbide grade with PVD TiAlN/TiN coating for wear resistance across multiple material groups
• Left-hand internal partial profile 60-degree thread form
• Covers 48 to 16 TPI pitch range (0.50 mm to 1.50 mm)
• 16NL insert style in the Snap-Tap series for secure, repeatable seating
• Compatible with ISO material groups K, M, P, and S
• Corner radius of 0.0800 inches for consistent thread root profile

Compatibility

Designed as a Snap-Tap series replacement insert for toolholders accepting the 16NL insert style. Confirm holder geometry and insert seat dimensions before installation.

Installation Notes

Threading inserts are installed and changed by machinists or tooling technicians on CNC or manual turning equipment. Always index or replace inserts with the machine powered down and the spindle fully stopped. Use the correct torque wrench for the insert clamping screw to avoid seat damage or insert fracture. Refer to the toolholder manufacturer's documentation and applicable shop safety procedures before placing the insert in the cut.