Hertel 16IRZAG55HG225T Threading Insert 3/8 Ic 55 Thread

Product Description

The HERTEL 16IRZAG55HG225T is a laydown threading insert designed for internal threading operations on CNC lathes and turning centers. Manufactured from solid carbide with a PVD-applied TiAlN coating, this insert delivers the edge hardness and heat resistance required for consistent thread-form accuracy across a range of materials. It carries a 3/8 inch inscribed circle, a thickness of 0.1614 inches (4.10 mm), and covers a thread pitch range of 48 to 8 TPI (0.50 to 3.00 mm pitch). The HG225TR grade and partial profile 55 thread form make it well suited for right-hand internal threading work where insert durability and coating integrity are priorities.

This insert is intended for right-hand internal partial profile 55-degree thread applications, covering a wide TPI range from 48 to 8 TPI. It is appropriate for use in production and job-shop environments where machinists and CNC operators require reliable threading inserts for bore threading operations. The 16IR insert style is a standard laydown format compatible with toolholders designed for that insert geometry. Each package contains one insert, with a minimum order quantity of 10 pieces.

Key Features

• Solid carbide substrate for rigidity and wear resistance in threading applications
• TiAlN coating applied via PVD process for elevated heat resistance and extended tool life
• Right-hand internal partial profile 55-degree thread form
• Wide TPI range: 48 to 8 TPI (0.50 to 3.00 mm pitch)
• 3/8 inch inscribed circle, 16IR laydown insert style
• Manufacturer grade HG225TR for consistent performance across compatible workpiece materials

Compatibility

Designed for use with toolholders accepting 16IR-style laydown threading inserts for right-hand internal 55-degree partial profile thread forms.

Installation Notes

Threading inserts of this type are installed and changed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or removing the insert. Verify insert orientation and seating before initiating any threading cycle. Follow the toolholder manufacturer torque guidelines for the clamping screw to avoid insert movement or damage during operation.