Kennametal 1743772 Threading Insert Npt 11.5 Tpi KC5025

Product Description

The KENNAMETAL 1743772 is a solid carbide laydown threading insert designed for cutting external NPT (National Pipe Taper) threads at 11.5 threads per inch. Carrying ISO code LT16ER115NPT and manufacturer grade KC5025, this insert features a TiAlN (titanium aluminum nitride) PVD coating that provides thermal resistance and wear protection during threading operations. With a 3/8-inch (9.53 mm) inscribed circle and a thickness of 0.1430 inches (3.44 mm), it is sized for standard LT16-series toolholders. Licensed machinists and CNC turning center operators use this insert for precision pipe thread production in production and job-shop environments.

This insert is intended for right-hand external NPT threading applications and is suited for use on CNC lathes and turning centers equipped with compatible LT16-style threading toolholders. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium. The NPT 11.5 TPI profile makes it a direct fit for producing tapered pipe thread forms commonly found in fluid and pressure system fittings.

Key Features

• ISO code LT16ER115NPT with KC5025 carbide grade for consistent thread form accuracy
• TiAlN PVD coating for improved heat resistance and extended tool life on ferrous and exotic materials
• 11.5 TPI NPT thread profile for standard tapered pipe thread production
• Right-hand external thread orientation for conventional CNC turning setups
• Solid carbide substrate for rigidity and wear resistance in interrupted and continuous cuts
• 3/8-inch inscribed circle for secure seating in LT16-series toolholders

Compatibility

Designed for use in LT16-style laydown threading toolholders. Compatible with workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium as stated in manufacturer specifications.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or tooling technician with the machine powered down and the spindle locked. Ensure the toolholder pocket is clean and free of chips before seating the insert, and verify torque on the clamping screw per the toolholder manufacturer specification. Do not exceed the recommended depth of cut or feed rate parameters published in the KENNAMETAL KC5025 grade application guide for the workpiece material in use.