Ingersoll Cutting Tools 5518012 Turning Insert Carbide

Product Description

The INGERSOLL CUTTING TOOLS 5518012 is a solid carbide turning insert in the CNGG series, designed for precision metal cutting on CNC lathes and turning centers. This uncoated, negative-rake insert features an 80-degree diamond shape with a 0.5 inch inscribed circle and a 0.016 inch corner radius. With four available cutting edges and a chip breaker designation of ML, it delivers consistent performance in applications where sharp, stable cutting geometry is required. It is installed by machinists and CNC operators working in high-precision turning environments.

This insert is suited for turning cast iron, non-ferrous metals, and super-alloys including titanium. The K10 uncoated solid carbide grade is well matched to these material families where coating interaction or heat buildup is a concern. The ML chip breaker geometry supports light to medium cutting passes where controlled chip formation is critical. Typical applications include finish turning and semi-finish turning operations on production or job-shop lathes.

Key Features

• 80-degree diamond insert shape with four cutting edges for maximum edge utilization
• K10 uncoated solid carbide grade suited for cast iron, non-ferrous metals, and super-alloys
• ML chip breaker geometry for controlled chip formation in light to medium passes
• 0.016 inch corner radius for finish and semi-finish turning
• Negative rake, neutral hand - compatible with standard CNGG-style clamp toolholders
• ISO-standard geometry; ANSI code CNGG431MLK10, ISO code CNGG120404ML K10

Compatibility

Designed for use in CNGG-series clamp-style toolholders accepting a 431 insert size with a 0.5 inch inscribed circle. Conforms to ISO standards for CNGG insert geometry.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping specifications. Ensure the machine spindle is fully stopped and the machine is in a safe, locked-out state before changing inserts. Inspect the insert pocket and clamp for debris or damage before seating a new insert. Do not exceed the maximum depth of cut of 0.138 inch as specified for this insert geometry.