Hertel 1000670 TPG321 HT10 Solid Carbide Turning Insert

Product Description

The HERTEL 1000670 is a solid carbide, uncoated turning insert in the TPG321 style, designed for external turning operations on CNC and manual lathes. It features a triangular insert shape with a 60-degree included angle, a 3/8-inch inscribed circle, and a 1/64-inch corner radius. The HT10 carbide grade delivers wear resistance and edge stability without a coating, making it well-suited for clean, consistent cuts in non-ferrous and cast materials. The positive rake geometry and 11-degree relief angle reduce cutting forces and help maintain sharp edge engagement through the cut. Part of the HERTEL KENDEX series, this insert is held in place by a clamp-style toolholder.

This insert is intended for use in clamp-style TPG-compatible toolholders in light to medium turning applications. Primary workpiece materials include non-ferrous metals and super alloys, with secondary suitability for cast iron and stainless steel workpiece families. It is applicable in both production and job-shop environments where an uncoated solid carbide insert is specified. The maximum depth of cut is 0.0492 inches (1.25 mm), making it appropriate for finishing and light semi-finishing passes. Machinists and CNC operators in precision machining and aerospace component work are the typical end users.

Key Features

• Solid carbide construction with uncoated HT10 grade for sharp, consistent cutting edges
• TPG321 insert style with 60-degree triangular shape and 11-degree relief angle
• Positive rake geometry reduces cutting forces and tool pressure
• 3/8-inch inscribed circle with 1/64-inch corner radius for controlled surface finish
• Clamp-style insert holding for secure seating in compatible toolholders
• Maximum depth of cut of 0.0492 inches (1.25 mm) suited for finishing passes

Compatibility

Designed for use in clamp-style TPG-compatible toolholders that accept TPG321 inserts with a 3/8-inch inscribed circle. This insert belongs to the HERTEL KENDEX series. Primary workpiece material codes N and S (non-ferrous and super alloys); secondary workpiece material codes K and M (cast iron and stainless). No specific machine or toolholder model numbers were provided in available product data.

Installation Notes

Installation is performed by machinists or CNC setup technicians using a compatible clamp-style TPG toolholder. Power down and lock out the machine spindle before seating or indexing the insert. Verify the insert pocket is clean and free of chips before clamping to ensure proper seating and edge alignment. Handle carbide inserts with care to avoid chipping the cutting edge prior to use.