Iscar 5509906 Turning Insert Dcmt Tialn Carbide

Product Description

The ISCAR 5509906 is a solid carbide turning insert in the DCMT style, designed for precision external turning operations on CNC lathes. Coated with TiAlN via a PVD process, this insert handles demanding cutting conditions across a range of workpiece materials. It features a 55-degree diamond shape, a positive rake geometry, and an SM chip breaker configuration. The insert measures 7.70 mm in length with a 1/4-inch inscribed circle diameter and a 1/64-inch corner radius, making it well-suited for finishing and semi-finishing passes where tight tolerances are required. Installation is performed by machinists and CNC operators as part of the Isoturn series toolholding system.

This insert is part of the Isoturn series and is primarily rated for use on superalloys and heat-resistant materials (ISO material group S) as well as stainless steels and mixed-material alloys (ISO material group M). It is appropriate for both light-production and high-mix CNC turning environments in job shops, aerospace, and general metalworking. The screw-held clamping method provides positive insert location and repeatable cutting-edge positioning during production runs.

Key Features

• DCMT insert style with 55-degree diamond shape and positive rake geometry
• TiAlN coating applied via PVD process for heat resistance and extended tool life
• SM chip breaker optimized for controlled chip formation in finishing and semi-finishing
• Maximum depth of cut: 2.50 mm (0.0984 inches) for controlled material removal
• Screw-held mounting method ensures secure, repeatable insert location
• Conforms to ISO 13399 tooling data standards for compatibility with CAM and presetter software

Compatibility

Designed for use in Isoturn series screw-clamp toolholders accepting DCMT-style inserts with a 1/4-inch inscribed circle. Primary workpiece material rating is ISO group S (superalloys and heat-resistant alloys); secondary rating is ISO group M (stainless and mixed-material alloys).

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Always power down and lock out the machine spindle before changing inserts. Use the correct torx or hex key to seat the clamping screw to the toolholder manufacturer's specification without over-torquing. Inspect the insert pocket for chips or debris before seating a new insert to ensure proper edge height and tool life.