Iscar 5601879 Milling Insert Sekr 42AFN-76 IC4050

Product Description

The ISCAR 5601879 is a square milling insert carrying the ANSI/ISO designation SEKR 42AFN-76 IC4050. It is manufactured from solid carbide and finished with a multilayer CVD coating of TiCN, Al2O3, and TiN applied by the MTCVD process. The insert belongs to the ISCARMILL F45E cutter series and is designed for indexable face and shoulder milling applications. With four cutting edges, a neutral hand orientation, and a positive rake geometry, it delivers efficient chip evacuation and reduced cutting forces on ferrous workpieces. The inscribed circle measures 0.5000 inches and the thickness is 0.1250 inches.

This insert is intended for milling steel, stainless steel, and cast iron in both roughing and semi-finishing operations. The IC4050 grade with its TiCN/Al2O3/TiN multilayer coating is well matched to the thermal and abrasive demands of P-, M-, and K-class workpiece materials per ISO material classification. It is suited to production machining environments where insert life and consistent surface finish matter, including general manufacturing shops, job shops, and OEM production lines. The insert is held in the cutter body by a clamp-style insert holding method.

Key Features

• Solid carbide substrate with MTCVD-applied TiCN / Al2O3 / TiN multilayer coating for wear resistance on steel and cast iron
• Four usable cutting edges on a single-sided square insert, maximizing cost per edge
• Positive rake geometry with honed cutting edge style for reduced cutting forces
• Maximum depth of cut of 0.2560 inches with an effective cutting edge length of 0.5000 inches
• 20-degree relief angle reduces flank wear in interrupted and continuous cuts
• Compatible with ISCARMILL F45E cutter bodies per manufacturer designation
• Compliant with ANSI and ISO 13399 insert identification standards

Compatibility

Designed for use in ISCARMILL F45E series cutter bodies. ANSI and ISO catalog designation is SEKR 42AFN-76 IC4050. Insert size code is 42, with an inscribed circle range of 0.5000 to 0.5100 inches and a length range of 0.5000 to 0.6000 inches.

Installation Notes

Indexable milling inserts are installed and replaced by qualified machinists or tooling technicians following the cutter manufacturer's torque and seating procedures for the F45E body. Ensure the machine spindle is locked and all power is isolated before handling inserts or adjusting cutter bodies. Inspect the insert pocket and clamp for wear or damage before seating a new insert. Follow the cutter body manufacturer's recommended cutting parameters for the IC4050 grade when setting feed rates and speeds.