Seco 02422749 Pcbn Turning Insert CNGA432 Diamond

Product Description

The SECO 02422749 is a polycrystalline cubic boron nitride (PCBN) turning insert designed for high-wear and moderate-toughness machining of cast iron and superalloys. It follows the CNGA432 ANSI insert code and CNGA120408 ISO insert code, featuring an 80-degree diamond (rhombic) shape with a flat-top chip breaker geometry. The insert is uncoated and multi-tipped with two cutting edges. A 0.5 inch inscribed circle and 0.03 inch corner radius make it suited for precision turning operations where tight tolerances and edge stability are critical. Licensed machinists and CNC tool setup specialists typically specify this insert for production turning environments.

This insert is intended for boring, facing, and turning applications on cast iron (ISO material group K) and special superalloys and titanium (ISO material group S). The PCBN substrate delivers high wear resistance with moderate toughness, making it appropriate for finishing and semi-finishing passes on hardened and abrasive workpiece materials. It seats in toolholders designed for CNGA-style inserts using clamp, pin, or lever lock holding methods. The negative rake and negative side clearance geometry (clearance code N, tolerance code G) support stable cutting forces during interrupted or continuous cuts on difficult materials.

Key Features

• PCBN substrate provides high wear resistance for cast iron and superalloy machining
• 80-degree diamond insert shape with flat-top chip breaker for stable cutting geometry
• Uncoated bright finish with chamfered and honed cutting edge style
• Two cutting edges per insert for extended tool life per unit
• Compatible with clamp, pin, and lever lock toolholder systems
• Meets both ANSI and ISO dimensional standards for broad toolholder compatibility

Compatibility

Designed as an OEM-style replacement or direct-fit insert for CNGA-style toolholders accepting ANSI size code 432 inserts. Primary workpiece materials are cast iron (ISO group K) and special superalloys and titanium (ISO group S). Secondary workpiece materials include hard materials (ISO group H).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the appropriate clamp, pin, or lever lock mechanism specified for the toolholder to achieve proper insert retention. Inspect the insert pocket for chips or debris before seating to prevent incorrect positioning or edge damage.