Iscar 5503779 Dcmt 3-1 Turning Insert IC520N Cermet

Product Description

The ISCAR 5503779 is a DCMT-style cermet turning insert in the Isoturn series, engineered for precision external and internal turning operations on steel and stainless steel workpieces. Manufactured to ISO 13399 standards, this insert features a TiCN and TiN coating applied via PVD process over a cermet substrate, delivering wear resistance and surface finish quality suited to finishing and semi-finishing passes. The 55-degree diamond shape with a 7-degree relief angle provides strong cutting geometry while maintaining clearance. Insert holding is via screw clamp, compatible with standard DCMT toolholders.

This insert is intended for use in CNC turning centers and manual lathes where tight dimensional tolerances and fine surface finishes are required. The IC520N grade targets primary workpiece materials coded M and P, meaning austenitic stainless steels and carbon and alloy steels. The T-style chip breaker is optimized for controlled chip evacuation at light-to-medium depths of cut, making it suitable for finishing operations in both production shop and maintenance machining environments. Installation is performed by machinists and CNC operators following standard insert indexing procedures.

Key Features

• Cermet substrate with TiCN and TiN PVD coating for extended tool life on steel and stainless steel
• 55-degree diamond insert shape (DCMT) with 7-degree relief angle for versatile turning geometry
• T-style chip breaker optimized for light-to-medium depth finishing passes
• Screw-clamp holding method compatible with standard DCMT toolholder pockets
• ISO 13399 compliant for accurate tool data integration with CAM and presetter systems
• Maximum depth of cut 0.0787 inches (2.00 mm) for controlled finishing engagement

Compatibility

Designed as an OEM-style replacement insert for standard DCMT-style toolholders used in CNC and manual turning applications targeting steel and stainless steel workpiece materials.

Installation Notes

Insert indexing and replacement should be performed with the machine fully powered down and the spindle locked. Use the appropriate Torx or hex key to loosen and reseat the clamping screw without overtightening, which can fracture the insert. Ensure the toolholder pocket and seating surface are clean and free of chips before seating the insert. Follow the toolholder manufacturer's recommended clamping procedure and verify insert seating before resuming cuts.