Hertel H08704595 Laydown Threading Insert 24 Tpi External Un

Product Description

The HERTEL H08704595 is a solid carbide laydown threading insert designed for external UN thread cutting at 24 threads per inch (TPI). Manufactured in the 16ER insert style, this insert carries a TiC/TiN finish that improves surface hardness and wear resistance during threading operations. With a 3/8 inch inscribed circle and a thickness of 0.146 inches, it is sized for standard laydown-style toolholders used in CNC turning and manual lathe threading applications. The HG330TR grade designation identifies the carbide substrate and coating system, making this insert suitable for threading ferrous and non-ferrous workpieces requiring UN-standard external threads.

This insert is intended for right-hand external threading in UN thread form at 24 TPI. It fits CNC turning centers and engine lathes equipped with laydown-style insert holders that accept the 16ER seat geometry. Typical applications include the production of threaded fastener components, hydraulic fittings, and mechanical assemblies requiring UN-standard external threads. It is primarily used by machinists and CNC operators in production and job shop environments.

Key Features

• Solid carbide construction with TiC/TiN coating for extended tool life
• 16ER insert style for use in standard laydown threading toolholders
• 24 TPI cutting geometry for UN external thread form
• Right-hand cutting orientation for standard external threading
• 3/8 inch inscribed circle for precise toolholder seating
• 0 degree relief angle - insert relies on toolholder for clearance geometry

Compatibility

Designed as an OEM-style replacement threading insert for laydown-style toolholders that accept the 16ER insert seat geometry in external UN threading applications.

Installation Notes

This insert is installed and replaced by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing any cutting insert. Ensure the toolholder pocket and clamping screw are clean and free of chips before seating the insert. Follow the toolholder manufacturer's clamping torque specifications and do not over-tighten the clamp screw, as solid carbide inserts are brittle and susceptible to fracture under uneven clamping force.