Kennametal 4171826 DNMG331FP KCU10 Carbide Turning Insert

Product Description

The KENNAMETAL 4171826 is a solid carbide turning insert with industry designation DNMG331FP, manufactured to ANSI and ISO standards in grade KCU10. The insert features a 55-degree diamond shape with a negative rake angle of 15 degrees and a TiAlN coating applied via PVD process for extended tool life in demanding cutting conditions. The inscribed circle measures 0.375 inches, corner radius is 0.0156 inches, and insert thickness is 0.1875 inches. With four cutting edges and a honed cutting edge style, this insert is designed for licensed machinists and CNC operators working in production turning environments.

This insert is suited for turning, facing, boring, back turning, and back boring operations. Primary workpiece materials include steel, stainless steel, superalloys, and titanium, corresponding to ISO material codes P, M, and S. The FP chip breaker geometry and KENLOC series design make this insert applicable across a range of feed and depth-of-cut conditions, with a maximum depth of cut of 0.3049 inches. It is held using a clamp and pin method, making it compatible with standard DNMG-style toolholders used in both light and moderate interrupted cutting scenarios.

Key Features

• 55-degree diamond insert shape (DNMG) with negative rake for controlled chip formation
• TiAlN PVD coating for heat resistance and extended wear life on steel and stainless applications
• Four usable cutting edges per insert for reduced per-edge tooling cost
• FP chip breaker geometry suitable for turning, facing, boring, back turning, and back boring
• Honed cutting edge style reduces microchipping on difficult-to-machine alloys
• Meets ANSI and ISO standards; ISO code DNMG110404FP

Compatibility

Designed for use in DNMG-style KENLOC toolholders that accept clamp and pin insert retention. Compatible with machining of steel, stainless steel, superalloys, and titanium workpiece materials. ISO material codes P, M, and S. Verified compatible with length range of 0.7000 to 10.0000 inches in applicable holder configurations.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Disengage machine power and confirm spindle is fully stopped before indexing or replacing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when seating the insert. Inspect the insert pocket and clamp pin for wear or debris before seating a new cutting edge.