Kennametal 4171828 DNMG432FP Turning Insert Carbide Tialn

Product Description

The KENNAMETAL 4171828 is a DNMG432FP solid carbide turning insert in grade KCU10, designed for external and internal turning operations on CNC lathes and turning centers. The insert features a 55-degree diamond shape with a 0.5-inch inscribed circle and a 0.0313-inch corner radius. PVD-applied TiAlN coating improves wear resistance and thermal stability during high-speed metal removal. The FP chip breaker geometry and honed cutting edge promote reliable chip control across a range of depths of cut up to 0.4065 inches. Licensed machinists and CNC operators specify this insert for production turning on steel, stainless steel, superalloys, and titanium workpieces.

The 4171828 is suited for finishing to medium roughing applications including turning, facing, boring, back turning, and back boring. Its negative rake geometry and neutral hand orientation make it compatible with standard DNMG-style toolholders using clamp and pin insert holding. The KCU10 grade is targeted at ISO material groups P, M, and S, with secondary suitability for K and N materials. This insert is part of the KENLOC series and carries an ISO code of DNMG150408FP.

Key Features

• TiAlN coating applied via PVD process for elevated heat and wear resistance
• FP chip breaker geometry for controlled chip formation across turning and boring operations
• 55-degree diamond insert shape with 4 usable cutting edges maximizes tool utilization
• Maximum depth of cut of 0.4065 inches suitable for finishing through medium roughing
• Negative rake, neutral hand design compatible with standard DNMG clamp-and-pin toolholders
• Meets ANSI and ISO dimensional standards for consistent toolholder fit

Compatibility

Designed as a drop-in replacement for DNMG432FP industry-standard inserts used in DNMG clamp-and-pin style toolholders. Compatible with ISO material groups P (steel), M (stainless steel), and S (superalloys and titanium) as primary workpiece materials, and K and N as secondary materials. ISO designation DNMG150408FP applies for international toolholder cross-reference.

Installation Notes

Installation is performed by licensed machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the toolholder pocket and confirm the clamp and pin are properly engaged before resuming cuts. Inspect the cutting edge and corner radius condition at regular intervals to prevent workpiece damage or insert breakage.