Hertel 1000703 TPMR222 HC335 Carbide Turning Insert

Product Description

The HERTEL 1000703 is a solid carbide turning insert in the TPMR222 style, designed for precision external turning operations on CNC and manual lathes. It features a triangular insert shape with a 60-degree included angle and carries a triple-layer CVD coating of TiC, TiCN, and TiN in the HC335 manufacturer grade. The insert measures 11 mm (0.4331 inches) in length with a 1/4-inch inscribed circle and a 1/32-inch corner radius. The neutral hand orientation and positive rake geometry make it well-suited for finishing and semi-finishing passes where controlled chip formation and surface finish consistency are priorities.

This insert is used in production and job-shop turning applications where steel and stainless workpiece materials are the primary targets. The KENDEX series designation and ISO material grade codes P (primary) and M (secondary) indicate suitability for carbon steels, alloy steels, and austenitic stainless steels. It is installed in clamp-style toolholders accepting TPMR-geometry inserts. The R chip breaker geometry supports controlled chip evacuation at moderate feed rates. Maximum depth of cut is 1.25 mm (0.0492 inches), making this insert appropriate for light to medium material removal rather than heavy roughing.

Key Features

• HC335 grade solid carbide with CVD-applied TiC, TiCN, and TiN multilayer coating for wear resistance and heat management
• TPMR222 insert style with 60-degree triangular shape and positive rake for reduced cutting forces
• 1/32-inch corner radius (0.0312 inches) suited for finishing and semi-finishing operations
• Neutral hand orientation for flexible toolholder compatibility
• R chip breaker geometry promotes chip control at moderate feeds
• Clamp-style holding method ensures secure seating in compatible toolholders

Compatibility

Designed as an OEM-style replacement or direct-fit insert for clamp-style TPMR toolholders accepting a 1/4-inch inscribed circle triangular insert with TPMR222 geometry.

Installation Notes

This insert is installed and replaced by a machinist or toolroom technician. Power down and de-energize the machine before indexing or replacing inserts. Use the appropriate torx or clamp screw torque as specified by the toolholder manufacturer. Inspect the toolholder seat and clamping components for wear or debris before seating a new insert to ensure proper support and runout control.