Sumitomo 196C164 Turning Insert CNMG431EEX AC6030M Carbide

Product Description

The SUMITOMO 196C164 is a solid carbide coated turning insert designed for precision metal cutting operations on CNC lathes and turning centers. Manufactured to ANSI code CNMG431EEX and ISO code CNMG120404N-EX, this insert features an 80-degree diamond shape with a neutral hand orientation and a negative rake angle. The AC6030M grade coating is applied via CVD process, providing the wear resistance and thermal stability required when machining stainless steel and other difficult materials. The EEX chip breaker geometry promotes controlled chip formation during interrupted and continuous turning passes. This insert is installed and replaced by machinists and CNC operators in production and job-shop environments.

This insert is primarily intended for turning stainless steel workpieces, corresponding to ISO workpiece material code M. Its CNMG style and CN series designation make it suited for medium to finishing cuts on external turning operations. The clamp and pin holding method ensures secure seating in compatible CNMG toolholders. Typical applications include shaft turning, facing, and profiling operations where consistent surface finish and dimensional accuracy are required.

Key Features

• CVD-coated solid carbide construction in AC6030M grade for stainless steel machining
• 80-degree diamond insert shape (ANSI shape code C) for versatile turning and profiling
• EEX chip breaker geometry for controlled chip evacuation during turning
• Negative rake, neutral hand orientation compatible with standard CNMG toolholders
• Meets ANSI and ISO 13399 standards for insert geometry and identification
• Clamp and pin holding method for rigid, repeatable insert seating

Compatibility

Designed for use in CNMG-style toolholders that accept 1/2-inch inscribed circle inserts with clamp and pin holding. Compatible with toolholder systems conforming to ANSI and ISO 13399 standards for CNMG431 inserts.

Installation Notes

Installation is performed by machinists and CNC operators. Always power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when securing the insert. Inspect the insert pocket and seating surfaces for debris or damage before seating a new insert to ensure accurate positioning and prevent premature edge failure.