Tungaloy 6852913 CNMG434 Turning Insert Cvd Carbide

Product Description

The TUNGALOY 6852913 is a CNMG434-geometry indexable turning insert in grade T5105, designed for metal-cutting operations on CNC lathes and turning centers. The insert is manufactured from solid carbide with a multilayer CVD coating consisting of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability during continuous and interrupted cuts. It features an 80-degree diamond shape, a negative rake angle of -15 degrees, and a chamfered and honed cutting edge. With four usable cutting edges per insert, it delivers a low per-edge cost in production environments. Licensed machinists and CNC operators install this insert in standard CNMG-style toolholders.

This insert is rated primarily for cast iron workpiece materials (ISO material code K, grades K05 and K15), making it well suited for finishing and semi-finishing passes on gray iron, ductile iron, and similar materials. Supported operations include turning, facing, and boring. The 0.0629-inch corner radius and 0.2362-inch maximum depth of cut make it appropriate for medium-stock-removal passes where surface finish and tool life consistency are priorities. It is compliant with both ANSI and ISO insert standards under ISO code CNMG 434.

Key Features

• Multilayer CVD coating (TiCN / Al2O3 / TiN) for thermal resistance and extended tool life on cast iron
• 80-degree diamond insert shape (Shape Code C) with negative rake for rigid, stable cutting action
• Four cutting edges per insert for maximum utilization
• Chamfered and honed cutting edge style reduces chipping during entry and exit
• Compatible with clamp and pin insert-holding methods for flexible toolholder fitment
• Meets ANSI and ISO dimensional standards (ISO Code CNMG 434)

Compatibility

Designed as an OEM-style replacement insert for standard CNMG434 toolholders using clamp or pin retention. Confirmed primary workpiece material compatibility is cast iron (ISO K05, K15). Suitable for turning, facing, and boring operations per manufacturer data.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine before seating or indexing any insert. Ensure the toolholder pocket and seating surfaces are clean and free of chips before installing the insert, as debris under the insert can cause premature edge failure or dimensional inaccuracy. Follow the toolholder manufacturer's clamping torque specifications when tightening the clamp screw or pin.