Iscar 5507807 WNMG431TF IC8250 Turning Insert Carbide

Product Description

The ISCAR 5507807 is a WNMG431TF IC8250 grade solid carbide turning insert designed for external turning operations on CNC lathes and turning centers. The insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN that delivers high wear resistance across a broad range of cutting conditions. It measures 8.70 mm (0.3425 inches) in length with a 0.5000-inch inscribed circle and a 1/64-inch (0.0157-inch) corner radius. The 80-degree trigon (W) shape with a negative side clearance and positive rake geometry makes it well suited for roughing and medium machining passes. Licensed machinists and CNC operators working in job shops and production environments are the primary installers.

This insert is intended for turning steel (ISO P) and stainless steel (ISO M) workpieces. The IC8250 grade characteristics span high wear resistance to high toughness for steel applications and high wear resistance to moderate wear resistance and toughness for stainless steel. It fits the ISCAR Isoturn series toolholders that accept WNMG-style inserts held by a clamp or pin clamping method. Maximum depth of cut is 4.00 mm (0.1575 inches). The TF chip breaker geometry is optimized for roughing and medium machining operations, helping to control chip flow and reduce cutting forces during aggressive passes.

Key Features

• CVD-coated TiCN/Al2O3/TiN multilayer for extended tool life in steel and stainless steel
• IC8250 grade covers roughing through medium machining in ISO P and M material groups
• 80-degree trigon insert shape with negative clearance angle and positive rake for efficient cutting
• TF chip breaker controls chip flow during high-material-removal-rate passes
• Clamp and pin holding compatibility provides secure seating in Isoturn toolholders
• Compliant with ISO 13399 for tooling data exchange

Compatibility

Designed for use in ISCAR Isoturn series toolholders that accept WNMG-style inserts with clamp or pin holding. ANSI insert code WNMG431; ISO insert code WNMG080404. Verify toolholder pocket tolerance and insert seat condition before installation.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before removing or seating any insert. Inspect the toolholder pocket and clamping components for wear or debris before seating the new insert to ensure proper contact and clamping force. Follow the toolholder manufacturer's torque specifications for the clamping screw, and do not reuse inserts that show chipping, cratering, or deformation on the cutting edge.