Sumitomo 196CAFN Turning Insert CNMG643EMU AC6030M Carbide

Product Description

The SUMITOMO 196CAFN is a solid carbide turning insert designed for precision metal cutting in CNC lathe and turning center applications. Carrying the ANSI designation CNMG643EMU and ISO code CNMG190612N-MU, this insert features an 80-degree diamond shape with a neutral hand orientation and a negative rake geometry. The AC6030M grade uses a CVD coating process to deliver wear resistance and thermal stability under the demanding cutting conditions common when machining stainless steel. The EMU chip breaker geometry promotes controlled chip flow and helps maintain surface finish. Licensed machinists and CNC operators are the primary installers and users of this insert.

This insert is rated for primary use on stainless steel workpiece materials (ISO material code M), making it well suited for turning operations on austenitic and ferritic stainless grades in both production shop and job shop environments. The CNMG style with clamp and pin holding method fits standard CNMG toolholders. The 3/4-inch inscribed circle and 1/4-inch thickness place it in the larger end of common turning insert sizes, appropriate for moderate to heavy material removal passes on stainless components.

Key Features

• AC6030M grade with CVD coating for extended tool life on stainless steel
• 80-degree diamond insert shape (code C) provides strong cutting edge geometry
• EMU chip breaker controls chip evacuation during continuous turning cuts
• Neutral hand orientation works with standard CNMG right-hand and left-hand toolholders
• Clamp and pin holding method provides secure seating under interrupted and continuous cuts
• Compliant with ANSI and ISO 13399 standards for tooling data compatibility

Compatibility

Designed as an OEM-style replacement turning insert for standard CNMG-style toolholders accepting a 3/4-inch inscribed circle, 1/4-inch thick, 80-degree diamond insert with clamp and pin retention.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing or indexing inserts. Use the correct torque wrench and clamp hardware specified by the toolholder manufacturer to seat the insert properly. Inspect the insert pocket and locating pin for debris or damage before seating a new insert.