Sumitomo 196CAFI Turning Insert CNMG432EMU AC6030M Carbide

Product Description

The SUMITOMO 196CAFI is a solid carbide turning insert in the CNMG432EMU geometry, grade AC6030M, designed for single-point turning operations on CNC lathes and turning centers. The insert features a CVD coating process and a negative rake angle, which together support stable cutting action and extended tool life under consistent chip loads. At 0.5079 inches in length with a 0.5-inch inscribed circle and a 1/32-inch (0.0313-inch) corner radius, this insert fits standard CNMG toolholders using clamp and pin holding methods. It is a neutral-hand insert suitable for general turning and finishing passes where tight dimensional control is required.

This insert is configured for primary use on stainless steel workpieces, identified by ISO material code M. The AC6030M grade and EMU chip breaker geometry make it well suited for medium to finishing cuts on austenitic and other work-hardening stainless alloys in both production and job-shop turning environments. Machinists and CNC operators working in aerospace, food processing equipment, and industrial fabrication shops will find this insert appropriate for applications where surface finish and edge integrity are priorities. It conforms to ANSI code CNMG432EMU and ISO code CNMG120408N-MU per ANSI and ISO 13399 standards.

Key Features

• CVD-coated solid carbide construction for heat resistance and wear performance on stainless steel
• Negative rake angle with CNMG geometry for strong cutting edge and predictable chip formation
• EMU chip breaker designed for medium to finishing cuts on work-hardening materials
• Clamp and pin holding method for secure seating in compatible CNMG toolholders
• Neutral hand orientation allows use in both right- and left-hand turning setups
• Compliant with ANSI and ISO 13399 standards for insert geometry and coding

Compatibility

Designed as an OEM-style replacement turning insert for standard CNMG toolholders accepting a 0.5-inch inscribed circle insert with clamp and pin holding. Verify toolholder pocket geometry and insert seat tolerance before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench for the clamp screw to avoid seat distortion — refer to the toolholder manufacturer specification for fastener torque. Inspect the toolholder pocket and seating surface for wear or debris before seating the new insert.