Hertel 8850552 Ceramic Turning Insert CNGA432T00325

Product Description

The HERTEL 8850552 is an uncoated ceramic turning insert designed for high-speed metal cutting operations on CNC and manual lathes. Manufactured to the CNGA432T00325 style in grade HT601CA, this insert features an 80-degree diamond shape with a negative rake angle and neutral hand orientation. The inscribed circle measures 0.5 inches, insert length is 0.472 inches, and the corner radius is 0.0312 inches (1/32 inch). Ceramic construction allows operation at elevated cutting speeds where carbide inserts are not suitable. This insert is held in place by a clamp and pin method and is intended for use by machinists and CNC operators in precision turning applications.

This insert is suited for finish and semi-finish turning of hardened steels, cast irons, and heat-resistant superalloys where ceramic tooling delivers productivity advantages. The CNGA style with clearance code N and tolerance code G fits standard CNGA-compatible toolholders used in production machining environments, job shops, and aerospace or automotive component manufacturing. The chip breaker designation A provides controlled chip flow during moderate to light cuts.

Key Features

• Uncoated ceramic insert material for high-speed dry cutting applications
• 80-degree diamond insert shape for strong cutting edge geometry
• Negative rake angle with neutral hand for versatile toolholder compatibility
• Corner radius of 0.0312 inches (1/32 inch) for controlled surface finish
• Clamp and pin holding method for secure seating in CNGA-style toolholders
• Grade HT601CA ceramic for hardened and abrasive workpiece materials

Compatibility

Designed as a direct-fit replacement for CNGA432T00325 style toolholders using clamp and pin holding systems. Compatible toolholders must accept a 0.2030-inch hole diameter, 0.5-inch inscribed circle, and CNGA insert geometry.

Installation Notes

Ceramic turning inserts must be installed by qualified machinists familiar with ceramic tooling requirements. Ensure the toolholder and clamping hardware are free of chips and debris before seating the insert. Ceramic inserts are brittle and should not be subjected to interrupted cuts or heavy feed rates outside the recommended range for the grade. Secure the clamp and pin to the toolholder manufacturers specified torque before beginning the cut.