Hertel H08706194 Threading Insert 16 Tpi Un Solid Carbide

Product Description

The HERTEL H08706194 is a solid carbide laydown threading insert designed for external UN thread cutting operations. It carries a 16ER insert style designation, meaning it is configured for right-hand external threading at 16 threads per inch (TPI) to the Unified National (UN) thread standard. The insert features a TiC/TiN multilayer coating that improves surface hardness and wear resistance during high-speed threading passes. With a 0 degree relief angle and a 3/8 inch (0.3750 inch) inscribed circle, this insert is dimensioned for standard laydown-style toolholders used by machinists and CNC turning professionals in production and job-shop environments.

This insert is suited for threading operations on ferrous and non-ferrous materials where a UN external thread profile is required. The HG330TR grade designation indicates a carbide substrate optimized for threading applications demanding consistent tool life across moderate to high production volumes. It is typically used in CNC lathes and manual engine lathes equipped with compatible 16ER-style laydown insert holders. Machinists running UN external thread forms on turned components such as fasteners, fittings, and hydraulic connectors will find this insert a direct working fit for standard production setups.

Key Features

• Solid carbide construction with TiC/TiN coating for extended wear resistance
• 16 TPI UN external thread profile, right-hand cutting direction
• 3/8 inch inscribed circle (0.3750 inch) for compatibility with standard 16ER laydown toolholders
• 0.1460 inch insert thickness for stable seating in the pocket
• 0 degree relief angle consistent with laydown insert geometry
• Manufacturer grade HG330TR suited for demanding threading applications

Compatibility

Designed as a direct-fit replacement for 16ER-style laydown threading insert seats requiring a UN external 16 TPI right-hand profile. Consult toolholder documentation to confirm pocket geometry and clamping style before installation.

Installation Notes

This insert is installed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the turret or toolpost is locked before changing inserts. Use the appropriate torx or clamp screw driver specified by the toolholder manufacturer to seat the insert firmly without over-torquing the clamping screw. Verify thread form and pitch with a thread gauge on the first part before committing to a production run.