Hertel 16ERAG60HG225TR Threading Insert Npt 48-8 Tpi Carbide

Product Description

The HERTEL 16ERAG60HG225TR is a laydown threading insert engineered for right-hand external NPT thread cutting on CNC lathes and threading machines. Manufactured from solid carbide with a TiAlN coating applied via PVD process, this insert delivers high wear resistance and thermal stability during threading operations. It covers a thread-per-inch range of 48 to 8 TPI and features a 3/8-inch inscribed circle (0.3750 inches) with a thickness of 0.146 inches. The 16ER insert style seats in compatible laydown toolholders. This insert is used by machinists and tool-and-die professionals in production threading of pipe fittings, valves, and fluid system components.

This insert is suited for external NPT threading applications in both job shop and production environments. The NPT thread standard makes it appropriate for machining tapered pipe threads used in plumbing, HVAC, and industrial fluid handling components. The 48 to 8 TPI range accommodates a wide variety of pipe sizes, from fine-pitch fittings down to larger-diameter pipe threads. The solid carbide substrate and TiAlN finish support cutting in steel, stainless steel, and other ferrous materials at elevated cutting speeds.

Key Features

• Solid carbide substrate for high rigidity and edge retention in threading operations
• TiAlN PVD coating provides thermal resistance and extended tool life
• Right-hand external NPT thread profile, 48 to 8 TPI range
• 16ER laydown insert style for use in standard compatible laydown toolholders
• 3/8-inch inscribed circle (0.3750 inches) and 0.146-inch thickness for precise seating
• Manufacturer grade HG225TR optimized for ferrous and hard material threading

Compatibility

Designed for use in 16ER-style laydown threading toolholders accepting a 3/8-inch inscribed circle insert. Suitable for CNC and manual lathes equipped with compatible insert pockets for external NPT thread cutting.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secured before inserting or replacing the insert. Seat the insert fully in the pocket and torque the clamping screw per the toolholder manufacturer specifications. Verify thread profile alignment with a thread gauge before resuming production cuts.