Hertel 11IR32UNHG225TR Threading Insert Carbide Tialn 32 Tpi

Product Description

The HERTEL 11IR32UNHG225TR is a laydown-style threading insert designed for internal thread cutting on CNC lathes and turning centers. Manufactured from solid carbide with a PVD-applied TiAlN coating, this insert is built for cutting right-hand internal UN-standard threads at 32 threads per inch (TPI). The TiAlN finish increases surface hardness and thermal resistance, supporting higher cutting speeds and extended tool life compared to uncoated carbide. With a 1/4 inch inscribed circle and a thickness of 0.127 inches, the 11IR insert style seats securely in compatible toolholders for repeatable thread form accuracy.

This insert is suited for machining internal UN threads in a range of materials where a PVD-coated solid carbide grade is appropriate, including alloy steels, stainless steels, and hardened materials. It is a standard choice for precision threading operations in job shops, production machining environments, and maintenance repair work where UN thread form conformance is required. Installation and use are performed by machinists and CNC operators. The insert ships individually (package quantity of 1) and is sold in a minimum order quantity of 10 units.

Key Features

• Solid carbide substrate with PVD TiAlN coating for elevated heat and wear resistance
• 32 TPI cutting geometry for UN-standard internal threads
• Right-hand cutting configuration
• 11IR insert style for laydown seating in standard compatible toolholders
• 1/4 inch inscribed circle diameter for consistent indexing
• Manufacturer grade HG225TR optimized for threading performance

Compatibility

Designed as an OEM-style replacement or standard-stock threading insert for toolholders accepting the 11IR laydown insert style with a 1/4 inch inscribed circle seating geometry.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the machine spindle is fully stopped and all axes are at a safe home position before indexing or replacing inserts. Use the correct torque driver or insert-clamping wrench as specified by the toolholder manufacturer to secure the insert without cracking the carbide substrate. Verify thread form and pitch with a calibrated thread gauge after the first pass before committing to full-depth threading cycles.