Hertel 8850564 TNGA332T00625 Ceramic Turning Insert

Product Description

The HERTEL 8850564 is a TNGA-style ceramic turning insert designed for precision metal cutting on CNC lathes and manual turning centers. Manufactured to grade HP610CA with a PVD-applied TiN coating, this insert offers improved wear resistance and edge integrity under demanding cutting conditions. The triangular insert geometry features a 60-degree included angle, a neutral hand orientation, and a negative rake configuration. The inscribed circle measures 0.375 inches, insert length is 0.63 inches, and thickness is 0.1875 inches. Machinists and tool-room technicians working with hard or abrasive materials will find this insert well-suited to finishing and semi-finishing passes.

This insert is intended for turning operations on lathes where ceramic tooling grades are specified for the workpiece material. The TNGA style with neutral hand is commonly used in both climb and conventional turning setups. The 0.0312-inch corner radius supports fine surface finishes while maintaining edge strength. It is held in place by clamp and pin holding methods, compatible with standard TNGA toolholders. Packaging quantity is 1 insert per package with a minimum order quantity of 10 units, making it a standard shop-supply item for tooling inventory.

Key Features

• HP610CA ceramic grade with PVD TiN coating for extended wear resistance
• TNGA332 style, triangular shape with 60-degree included angle
• Negative rake and neutral hand orientation for versatile turning setups
• 0.0312-inch corner radius for fine surface finish capability
• Clamp and pin holding method for secure, repeatable seating in toolholder
• Chip breaker style A for controlled chip formation

Compatibility

Designed as a direct-fit replacement for TNGA332T00625 style inserts in standard TNGA-compatible toolholders. Confirm toolholder insert pocket specifications before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Always disengage the machine spindle and lock out the lathe before indexing or replacing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when securing the insert. Ceramic inserts are brittle and should not be subjected to interrupted cuts or heavy shock loading unless the grade is specifically rated for such conditions.