Kennametal 5109294 Turning Insert DNGG430.5FS KCU10 Carbide

Product Description

The KENNAMETAL 5109294 is a solid carbide turning insert in the KENLOC series, designed for precision metal cutting operations on CNC lathes and turning centers. Carrying the ANSI insert code DNGG430.5 and ISO code DNGG150402FS, this insert features a 55-degree diamond (rhombic) shape with a TiAlN PVD coating and a honed cutting edge. The KCU10 grade delivers high wear resistance with moderate toughness, making it well-suited for finishing passes on steel, stainless steel, and superalloys. The FS chip breaker geometry supports controlled chip formation at finishing depths of cut up to 0.08 inches. Weight is 0.03 pounds per insert.

This insert is intended for finishing operations including turning, facing, boring, back turning, and back boring. The neutral hand orientation and negative rake geometry make it compatible with standard DNGG-style clamp-and-pin toolholders. It is rated for use on primary workpiece materials coded P (steel), M (stainless steel), K (cast iron), N (aluminum and non-ferrous), S (superalloys and titanium), and H (hardened materials). Typical applications are found in production machining environments where tight tolerances and surface finish are the priority. Sold individually; minimum order quantity is 5 inserts.

Key Features

• KCU10 grade TiAlN PVD coating provides high wear resistance for steel, stainless steel, and cast iron finishing
• 55-degree diamond insert shape (DNGG) with negative rake and negative side clearance for rigid, stable cuts
• FS chip breaker geometry optimized for finishing chip control
• Honed cutting edge reduces microchipping on demanding workpiece materials
• 4 usable cutting edges per insert for extended tool life per unit
• Compatible with clamp and pin insert holding methods

Compatibility

Designed as an OEM-style replacement for DNGG430.5FS format inserts in standard KENLOC-style clamp-and-pin toolholders accepting a 55-degree diamond insert with a 0.5-inch inscribed circle. Conforms to ANSI and ISO standards for this insert geometry.

Installation Notes

Installation is performed by a machinist or CNC toolroom technician using the appropriate torque wrench and clamp screw per the toolholder manufacturer specifications. Power down and lock out the machine spindle before seating or indexing the insert. Inspect the toolholder pocket and seating surfaces for wear or debris before installing a new insert. Do not exceed the maximum depth of cut rating for the FS finishing geometry.