Hertel 16ERZAG60HG330T Threading Insert 3/8 in Ic Carbide

Product Description

The HERTEL 16ERZAG60HG330T is a laydown threading insert designed for external thread-cutting operations on CNC lathes and turning centers. Built from solid carbide with a PVD-applied TiAlN coating, this insert delivers heat resistance and edge wear performance suited to high-speed threading in steel and hardened materials. It cuts a partial profile 60-degree thread form in a right-hand orientation, covering a thread range of 48 to 8 TPI and a pitch range of 0.50 to 3.00 mm. The 3/8-inch inscribed circle and 4.10 mm thickness conform to the 16ER insert style standard, making toolholder selection straightforward for machinists familiar with that designation.

This insert is intended for external threading passes on turned workpieces in production and job-shop environments. The partial profile geometry allows a single insert to cover a range of thread pitches within its rated TPI span, reducing the need to swap tooling between jobs. It is suited to CNC lathe operators and manual-turret machinists working in aerospace, automotive, general machining, and industrial fabrication. The HG330TR grade is specified by the manufacturer for threading in steel and similar ferrous materials at moderate to aggressive cutting parameters.

Key Features

• Solid carbide substrate with PVD TiAlN coating for heat and wear resistance
• Partial profile 60-degree external thread form covers 48 to 8 TPI range
• Right-hand cutting orientation for standard external threading passes
• 3/8-inch (0.3750 inch) inscribed circle fits standard 16ER-style toolholders
• 4.10 mm (0.1614 inch) thickness matches 16ER insert seat geometry
• Pitch range of 0.50 to 3.00 mm supports metric and unified thread applications

Compatibility

Designed to seat in 16ER-style external threading toolholders that accept a 3/8-inch inscribed circle laydown insert with a 4.10 mm thickness.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be stopped and all axes brought to a safe position before changing inserts. Use the appropriate torx or hex key torque wrench specified by the toolholder manufacturer to seat the insert clamp screw - do not overtighten by hand. Inspect the insert pocket and locating surfaces for chips or debris before seating the new insert, as contamination in the pocket can affect thread form accuracy.