Hertel H08698169 Threading Insert 8 Tpi 3/8 Inch Ic

Product Description

The HERTEL H08698169 is a laydown-style threading insert designed for external UN thread cutting on CNC lathes and manual threading applications. Manufactured from solid carbide with a TiC/TiN coating, this insert delivers extended tool life and consistent thread quality at 8 threads per inch. The 16ER insert style seats securely in compatible laydown toolholders, and the 3/8 inch inscribed circle with a 0.146 inch thickness fits standard ER-style pockets. It is configured for right-hand external threading, making it suitable for the majority of standard fastener thread profiles encountered in production and maintenance machining environments.

This insert is used in threading operations on CNC turning centers, engine lathes, and turret lathes where UN-standard external threads are required. The 8 TPI thread pitch is common in larger-diameter fastener and pipe fitting applications. Machinists in general manufacturing, maintenance repair, and job shop environments will find this insert well suited for interrupted and continuous external threading passes on steel and alloy workpieces. The TiC/TiN coating provides a hard, wear-resistant surface layer that helps maintain cutting edge integrity through multiple passes.

Key Features

• Solid carbide substrate with TiC/TiN coating for wear resistance
• 16ER insert style for use in laydown ER-type threading toolholders
• 8 TPI cutting geometry for UN external thread standard
• Right-hand orientation for standard external thread direction
• 3/8 inch inscribed circle and 0.146 inch thickness for precise pocket fit
• Zero relief angle geometry consistent with laydown insert seating

Compatibility

Designed for use in 16ER-style laydown threading toolholders that accept a 3/8 inch inscribed circle insert. Suitable for UN external thread profiles at 8 TPI on compatible CNC and manual lathes.

Installation Notes

Threading inserts should be installed by a qualified machinist following the toolholder manufacturer's seating and clamping specifications. Ensure the machine spindle is fully stopped and the toolholder is secured in the turret before changing inserts. Inspect the insert pocket for debris or damage before seating the new insert. Follow applicable shop safety procedures and machine lockout/tagout protocols during all tooling changes.