Kennametal 5641098 DNMG431MP Turning Insert KCM15B Carbide

Product Description

The KENNAMETAL 5641098 is a solid carbide turning insert in the KENLOC series, designed for precision material removal on CNC lathes and turning centers. It carries the ANSI designation DNMG431MP and ISO code DNMG150404MP, featuring a 55-degree diamond (rhombic) shape with a negative rake and neutral hand orientation. The insert is coated via MTCVD with a multilayer TiCN and Al2O3 coating classified as grade KCM15B, balancing moderate wear resistance with toughness. With four usable cutting edges and an MP chip breaker geometry, it covers roughing and medium machining operations. Licensed HVAC technicians, machinists, and metalworking professionals in production environments are the primary installers of this insert type.

This insert is suited for turning, facing, boring, back turning, and back boring operations on steel, stainless steel, superalloys, and titanium workpieces. Grade KCM15B targets ISO material groups P (steel) and M (stainless steel), offering moderate to high wear resistance depending on workpiece material. It is held by clamp or pin methods and is designed for use in KENLOC-compatible toolholders. The ANSI size code 431 and ISO size code 150404 govern toolholder compatibility selection.

Key Features

• MTCVD multilayer TiCN and Al2O3 coating (grade KCM15B) for wear resistance on steel and stainless steel
• 55-degree diamond insert shape with negative rake and 0-degree relief angle for rigid, stable cutting
• MP chip breaker geometry rated for roughing and medium machining operations
• Four usable cutting edges per insert, reducing per-edge tooling cost
• Compatible with clamp and pin holding methods in KENLOC-series toolholders
• Meets ANSI and ISO insert standards; ANSI code DNMG431MP, ISO code DNMG150404MP

Compatibility

Designed for use in KENLOC-series toolholders accepting DNMG431 (ANSI) or DNMG150404 (ISO) inserts with clamp or pin retention. Suitable for machining steel (ISO P), stainless steel (ISO M), superalloys, and titanium workpieces.

Installation Notes

Installation and indexing should be performed by a qualified machinist with the machine powered down and spindle locked. Seat the insert fully against the toolholder pocket and torque the clamping screw according to the toolholder manufacturer specification before resuming cuts. Inspect the cutting edge and chip breaker for chips or fractures at each index. Follow shop safety and machine guarding requirements when handling carbide inserts, as edges are sharp and carbide is brittle.