Iscar 5590342 DCMT2-2PF IC907 Carbide Turning Insert

Product Description

The ISCAR 5590342 is a solid carbide turning insert in the DCMT2-2PF geometry with IC907 grade designation, designed for precision finishing operations on CNC and manual lathes. It features a 55-degree diamond (rhombic) insert shape with a positive rake and positive side clearance, which promotes free-cutting action and reduced cutting forces. The PVD-applied TiAlN and TiN dual coating delivers high wear resistance across a range of workpiece materials. At 0.3031 inches in length with a 0.25-inch inscribed circle and a 0.0315-inch corner radius, this insert is sized for light to moderate finishing passes. It is part of the ISCAR Isoturn series and held in place by screw clamping. Licensed machinists and CNC operators working in production turning environments are the primary installers.

This insert is engineered for finishing applications across multiple material groups. The IC907 grade with its submicron carbide substrate covers steel (P), stainless steel (M), cast iron (K), aluminum and non-ferrous (N), and heat-resistant superalloys (S). It is suited for applications where surface finish quality and dimensional consistency are critical. The Isoturn series geometry targets moderate to high cutting speeds with controlled chip formation via the PF chip breaker, making it well-suited for fine-tolerance turning on production floors or job shops running mixed-material work.

Key Features

• IC907 grade with PVD TiAlN and TiN coating for high wear resistance across P, M, K, N, and S material groups
• 55-degree diamond insert shape (DCMT style) with positive rake for reduced cutting forces during finishing
• PF chip breaker geometry optimized for finishing operations with controlled chip evacuation
• Screw-clamping insert holding method for secure, repeatable seating in compatible toolholders
• Submicron carbide substrate improves edge toughness and coating adhesion
• Conforms to ISO 13399 standard for insert identification and toolholder compatibility

Compatibility

Designed for use in DCMT-style screw-clamp turning toolholders compatible with the ANSI insert code DCMT2-2 and ISO insert code DCMT070208. Verify toolholder pocket geometry, insert seat dimensions, and clamping screw thread before installation.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Always index or replace inserts with the machine in a safe, stopped state and all axes locked or in a safe position. Use the correct torque-limiting screwdriver or wrench for the clamping screw to avoid seat damage — do not overtighten by feel alone; follow the toolholder manufacturer seating procedure. Inspect the insert pocket for chips, wear, or debris before seating a new insert to maintain accurate insert height and runout.