Hertel 16ER10UNHG225TR Threading Insert Solid Carbide 10 Tpi

Product Description

The HERTEL 16ER10UNHG225TR is a laydown-style external threading insert designed for cutting Unified National (UN) thread forms at 10 threads per inch (TPI). Manufactured from solid carbide with a PVD-applied TiAlN coating, it delivers high wear resistance and thermal stability during high-speed threading operations on CNC lathes and threading machines. The right-hand cutting geometry suits standard external thread applications. With a 3/8-inch inscribed circle and a thickness of 0.146 inches, this insert fits compatible 16ER-series toolholders. Licensed machinists and CNC operators working in precision machining environments are the primary users of this insert.

This insert is suited for external threading of ferrous and non-ferrous workpieces where UN thread standards are specified. Typical applications include production threading on turning centers in both job-shop and industrial manufacturing settings. The TiAlN coating supports elevated cutting temperatures, making this insert appropriate for dry or minimal-lubrication machining conditions. It is commonly used when consistent thread profile accuracy is required across high-volume runs.

Key Features

• Solid carbide substrate for rigidity and long tool life in threading applications
• PVD TiAlN coating provides oxidation resistance and reduced friction at the cutting edge
• 16ER insert style fits standard 16ER-series external threading toolholders
• Right-hand cutting geometry for conventional external UN thread cutting
• 10 TPI thread pitch for Unified National thread form production
• 3/8-inch inscribed circle and 0.146-inch thickness for precise toolholder seating

Compatibility

Designed as an OEM-style replacement or equivalent insert for 16ER-series external threading toolholders configured for UN thread form cutting.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC toolroom technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer to avoid over-torquing the insert pocket. Inspect the pocket and clamping surfaces for chips or debris before seating the insert to ensure proper contact and repeatable thread accuracy.