Hertel 16ER24UNHG225TR Threading Insert 24 Tpi Solid Carbide

Product Description

The HERTEL 16ER24UNHG225TR is a solid carbide laydown threading insert designed for external UN thread turning on CNC lathes and threading machines. Built to grade HG225TR with a PVD-applied TiAlN coating, this insert delivers consistent thread profile accuracy on a 24 TPI pitch in right-hand orientation. The 3/8-inch (0.375 inch) inscribed circle and 0.146-inch thickness conform to the standard 16ER insert geometry. It is suited for production environments where thread quality and tool life on steel and alloy workpieces are critical. Licensed machinists and CNC operators working in metalworking and precision machining shops are the primary users of this insert.

This insert is used for single-point external threading operations producing UN-standard thread forms at 24 threads per inch. Typical applications include threading on steel, stainless, and alloy components in job shop, production turning, and repair machining environments. The right-hand cutting geometry suits standard spindle rotation on conventional and CNC lathes. The TiAlN coating supports elevated cutting temperatures encountered in higher-speed threading passes, helping extend edge life between index cycles. This insert is sold individually but requires a minimum order quantity of 10 pieces per order.

Key Features

• Solid carbide substrate for rigidity and wear resistance in threading applications
• TiAlN PVD coating supports higher cutting speeds and improves tool life on ferrous materials
• 24 TPI UN external thread form for standard unified national thread profiles
• Right-hand cutting orientation for standard lathe spindle rotation
• 3/8-inch inscribed circle with 16ER laydown geometry for compatibility with standard 16ER toolholders
• 0.146-inch insert thickness provides stable seating in the pocket

Compatibility

Designed as an OEM-style replacement or direct-use insert for CNC lathe toolholders accepting the 16ER laydown threading insert geometry.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the program is in a safe state before indexing or replacing inserts. Use the correct torque wrench and manufacturer-specified clamping hardware for the 16ER toolholder to secure the insert without cracking the carbide substrate. Inspect the insert pocket for chips or debris before seating the insert to ensure full, flat contact.