Hertel H08697161 Threading Insert 12 Tpi 3/8 Inch Ic

Product Description

The HERTEL H08697161 is a laydown threading insert designed for right-hand external UN thread cutting operations. Built from solid carbide with a TiC/TiN finish, this insert delivers consistent thread form and wear resistance on a wide range of workpiece materials. It carries a 16ER insert style designation and is manufactured to HERTEL grade HG630TR. Key cutting parameters include a 12 threads-per-inch (TPI) pitch, a 3/8-inch (0.375 inch) inscribed circle, and a thickness of 0.146 inches. The relief angle is 0 degrees, making it a true laydown-style insert. Machinists and toolroom professionals working on CNC lathes and manual turning centers install this insert in compatible toolholders for producing unified national (UN) external threads.

This insert is suited for single-point threading applications on CNC turning centers and engine lathes where external UN threads at 12 TPI are required. Typical applications include threading steel, stainless steel, and similar ferrous materials in production and job-shop environments. The TiC/TiN coating provides a hard, low-friction surface that extends tool life between index changes. This is a single-insert package sold in minimum order quantities of 10 units, making it appropriate for both stocking and point-of-use procurement.

Key Features

• Solid carbide construction with TiC/TiN coating for wear resistance and extended tool life
• 16ER insert style for use in compatible right-hand external threading toolholders
• 12 TPI pitch for unified national (UN) external thread form
• 3/8-inch inscribed circle (0.375 inch) for toolholder compatibility sizing
• 0.146-inch insert thickness meeting standard laydown seating geometry
• 0-degree relief angle confirming true laydown insert configuration

Compatibility

Designed for use in toolholders accepting the 16ER insert style for right-hand external threading applications. Verify toolholder seat geometry and insert style designation before installation to confirm fit.

Installation Notes

This insert is installed by a machinist or toolroom technician in a compatible 16ER threading toolholder. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or indexing the insert. Use a torque wrench appropriate for insert clamping screws and follow the toolholder manufacturer's clamping specifications. Inspect the insert seat for chips or debris before installation to ensure proper seating and thread accuracy.