Seco 00049808 Threading Insert 12 Tpi Unj Carbide

Product Description

The SECO 00049808 is a laydown threading insert designed for external UNJ thread cutting at 12 threads per inch (TPI). Part of the Snap-Tap series, it is manufactured from solid carbide with a TiAlN/TiN PVD coating that extends edge life across a broad range of workpiece materials. The insert carries the CP500 grade designation and is configured for right-hand cutting with a 60-degree included angle. It measures 3/8 inch inscribed circle and 0.1366 inches thick. Machinists and CNC turning specialists install this insert on compatible laydown threading toolholders for precision aerospace and general-purpose thread profiles.

This insert is suited for external UNJ thread applications where profile accuracy and surface finish are critical. The UNJ thread standard specifies a controlled root radius, making it common in aerospace and defense component machining. The CP500 grade and universal material code coverage (K, M, N, P, S) allow the insert to perform across cast iron, non-ferrous, non-metallic, steel, and heat-resistant alloy workpieces. It is sold individually per package, with a minimum order quantity of 2 pieces.

Key Features

• CP500 carbide grade with TiAlN/TiN PVD coating for extended wear resistance
• 12 TPI external UNJ thread form with 60-degree included angle
• Right-hand cutting orientation for standard lathe and CNC turning setups
• 3/8 inch inscribed circle for use with standard laydown threading toolholders
• Universal material compatibility covering K, M, N, P, and S workpiece material groups per ISO classification
• Corner radius of 0.0130 inches supports accurate UNJ root profile geometry

Compatibility

Designed as an OEM-style replacement or direct-fit insert for laydown threading toolholders accepting 16ER-style inserts with a 3/8 inch inscribed circle. No specific toolholder model numbers were provided in the product data.

Installation Notes

This insert is installed by a machinist or CNC operator on a compatible laydown threading toolholder. Always power down and lock out the machine before changing inserts. Seat the insert fully against the toolholder pocket and secure with the appropriate clamping screw to the toolholder manufacturer's specified torque. Inspect the insert seating and corner radius alignment before resuming cutting operations.