Walter 6351915 DNMG432-MK5 WKK10S Turning Insert Carbide

Product Description

The WALTER 6351915 is a solid carbide turning insert in the DNMG432-MK5 WKK10S designation, engineered for high-performance metal cutting on CNC lathes and turning centers. This insert features a 55-degree diamond shape with a neutral hand orientation and a negative rake angle of 14 degrees. The tri-layer CVD coating stack - TiCN, Al2O3, and TiCN - delivers thermal stability and wear resistance required for demanding cutting conditions. The MK5 chip breaker geometry controls chip formation effectively across a range of feed rates and depths. With four usable cutting edges per insert, it delivers strong cost-per-edge value for production environments.

This insert is designed primarily for turning, facing, boring, and back turning operations on cast iron and hard materials. The WKK10S grade corresponds to ISO material groups K and H, making it well suited for machined components where surface finish consistency and tool life are critical. It is installed by machinists and CNC tooling specialists in job shop and production machining environments. The DNMG insert style is held by clamp and pin, fitting standard DNMG-compatible toolholders.

Key Features

• CVD tri-layer coating (TiCN / Al2O3 / TiCN) for extended wear resistance on abrasive workpieces
• 55-degree diamond insert shape (code D) with negative rake for stable interrupted and continuous cuts
• MK5 chip breaker optimized for cast iron and hard material applications
• Four cutting edges per insert with neutral hand orientation
• Chamfered and honed cutting edge style for edge toughness and controlled chip load
• Compatible with clamp and pin holding methods in standard DNMG toolholders
• Multi-use application: turning, facing, boring, and back turning

Compatibility

Designed for use in DNMG-style toolholders that accept a 432 insert size with clamp and pin holding. ISO equivalent designation is DNMG150408-MK5 WKK10S. Suitable for ISO material groups K (cast iron) and H (hard materials) per material grades K10 and H30.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Before seating the insert, power down the machine and confirm the spindle is fully stopped. Clean the insert pocket and seating surfaces before installing to ensure proper seating and edge alignment. Follow the toolholder manufacturer's clamping torque specifications and verify insert security before resuming cutting operations.