Hertel 1001214 TNG322 HC335 Carbide Turning Insert

Product Description

The HERTEL 1001214 is a solid carbide turning insert designed for precision metal cutting on CNC and manual lathes. It carries the TNG322 insert designation and is manufactured in the KENDEX series with an HC335 grade. The insert features a CVD-applied multilayer coating of TiC, TiCN, and TiN, which improves wear resistance and extends tool life across a range of workpiece materials. At 0.65 inches in length with a 3/8-inch inscribed circle and a 1/32-inch corner radius, this is a compact, neutral-hand insert suited to general turning operations. Licensed machinists and CNC operators install this insert into compatible clamp-style toolholders.

This insert is appropriate for turning applications involving steel and stainless steel workpiece materials, corresponding to ISO material groups P and M. The HC335 grade with C5 and C6 material grade classifications makes it suitable for finishing and semi-finishing passes. The 60-degree triangular shape provides three usable cutting edges per insert, and the neutral hand orientation allows use in both left- and right-hand toolholder setups. Typical applications include external turning, facing, and light profiling in a production or job-shop environment.

Key Features

• CVD-coated with TiC, TiCN, and TiN multilayer system for extended wear life
• HC335 grade rated for ISO P and M workpiece material groups (steel and stainless steel)
• 60-degree triangular shape with three usable cutting edges per insert
• Neutral hand orientation compatible with both left- and right-hand toolholders
• Clamp-type holding method for secure, repeatable seating in the pocket
• 1/32-inch corner radius suitable for finishing and semi-finishing cuts

Compatibility

Designed as an OEM-style replacement or direct-use insert for clamp-style toolholders accepting TNG-style triangular inserts with a 3/8-inch inscribed circle. Verify toolholder pocket specifications before installation.

Installation Notes

This insert is installed by qualified machinists or CNC operators. Power down and lock out the machine before changing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when seating the insert. Inspect the toolholder pocket for wear or debris before installing a new insert, and never reuse a damaged or chipped cutting edge.