Kennametal 1310890 Turning Insert DCMT3251LF KC5010

Product Description

The KENNAMETAL 1310890 is a DCMT3251LF solid carbide turning insert with a KC5010 manufacturer grade and a PVD-applied TiAlN coating. Designed for external and internal turning operations, this insert features a 55-degree diamond shape, a positive rake angle of 5 degrees, and a honed cutting edge for clean, consistent cuts. The screw-on holding method provides secure seating in compatible toolholders. With a 3/8-inch inscribed circle and a 1/64-inch corner radius, this insert is suited for light to moderate material removal in demanding cutting environments. It carries two cutting edges per insert and is rated for use across steel, stainless steel, superalloys, and titanium workpiece materials.

This insert is intended for use in CNC turning centers, manual lathes, and boring setups where wear resistance and edge consistency are critical. The LF chip breaker geometry promotes controlled chip evacuation during turning, facing, boring, back turning, and back boring operations. The KC5010 grade with TiAlN PVD coating is specifically engineered for harder-to-machine materials including stainless steel, superalloys, and titanium, making it a practical choice for aerospace, medical, and precision manufacturing applications. The neutral hand orientation supports a wide range of toolholder configurations. Sold individually, with a minimum order quantity of 5 units.

Key Features

• KC5010 carbide grade with PVD TiAlN coating for extended tool life in steel, stainless steel, superalloys, and titanium
• 55-degree diamond insert shape (DCMT style) with positive rake for reduced cutting forces
• LF chip breaker geometry supports turning, facing, boring, back turning, and back boring
• Honed cutting edge style for consistent performance and edge integrity
• Screw-on insert holding method for repeatable seating and quick indexing
• Two usable cutting edges per insert
• Complies with ANSI and ISO insert standards

Compatibility

Designed as an OEM-style replacement or standard DCMT-style insert for screw-on turning toolholders accepting a 3/8-inch inscribed circle diamond insert. Industry standard number DCMT3251LF. Compatible with toolholders rated for DCMT-style inserts per ANSI and ISO standards. Suitable for multi-use applications including turning, facing, boring, back turning, and back boring on steel, stainless steel, superalloys, and titanium workpieces.

Installation Notes

Installation is performed by a machinist or CNC tooling technician using the screw-on clamping method standard to DCMT-style toolholders. Ensure the machine spindle is fully stopped and the turret is de-energized before indexing or replacing inserts. Use the correct torx or hex key specified by the toolholder manufacturer to seat the clamping screw to proper engagement without stripping the insert pocket. Inspect the insert pocket and seating surfaces for chips or wear before installing a new insert to maintain dimensional accuracy.