Ingersoll Cutting Tools 6139412 Turning Insert CNGG330.5

Product Description

The INGERSOLL CUTTING TOOLS 6139412 is a CNGG-style carbide turning insert designed for precision metal cutting on CNC and manual lathes. Manufactured to ANSI code CNGG330.5 and ISO code CNGG090402ML K10, this insert features an 80-degree diamond (rhombic) shape with a negative rake and negative side clearance. The uncoated K10 carbide grade delivers high wear-resistance when cutting cast iron, superalloys, titanium, and non-ferrous metals. With four usable cutting edges and a clamp-style holding method, it provides consistent performance across roughing and medium machining operations.

This insert is suited for turning applications on cast iron components, titanium parts, superalloys, and non-ferrous workpieces in both production and job-shop environments. The ML chip breaker geometry is optimized for roughing and medium machining passes where chip control and edge integrity are critical. Machinists and tooling specialists working in aerospace, automotive, and general machining will find this insert compatible with standard CNGG-series toolholders. It is sold individually.

Key Features

• K10 uncoated carbide grade - high wear-resistance for cast iron, superalloys, titanium, and non-ferrous metals
• 80-degree diamond insert shape (CNGG) with negative rake for stable, rigid cutting action
• ML chip breaker geometry supports roughing and medium machining operations
• Four cutting edges per insert for extended tooling value
• 0.0080-inch corner radius for controlled edge geometry
• Clamp-style holding method compatible with standard CNGG toolholders

Compatibility

Designed as an OEM-style replacement or standard drop-in for CNGG-series turning toolholders accepting ANSI size code 330.5 inserts with a clamp-style holding method.

Installation Notes

Turning insert installation should be performed by a qualified machinist or tooling technician with the machine powered down and in a locked-out state. Ensure the toolholder pocket and clamp are clean and free of debris before seating the insert. Use the appropriate torx or clamp screw torque per the toolholder manufacturer specification - do not over-tighten, as this can fracture the carbide. Verify insert seating and edge orientation before resuming cutting operations.