Iscar 5591066 Turning Insert XCMT040104RMF IC908 Carbide

Product Description

The ISCAR 5591066 is a solid carbide turning insert in the XCMT style, designed for precision metal turning operations on CNC lathes and turning centers. Coated with TiAlN via a PVD process, the IC908 grade insert delivers wear resistance and thermal stability across a range of workpiece materials. The insert measures 6.40 mm (0.2520 inches) in length with an inscribed circle of 0.1732 inches and a corner radius of 1/64 inch (0.0157 inches). The parallelogram shape (X-code) with an 83.5-degree included angle and 7-degree relief angle is suited to profiling and light-to-medium turning passes. The MF chip breaker geometry promotes controlled chip formation at moderate feed rates.

This insert is part of ISCAR's Multifunction Tools series and is applicable to turning a broad range of materials, including steel, stainless steel, cast iron, high-temperature alloys, and non-ferrous materials, as indicated by workpiece material codes P, M, K, S, and H. It is used in standard screw-lock insert toolholders that accept XCMT-style inserts with a C clearance code and M tolerance designation. Typical applications include finish and semi-finish turning on both manual and CNC turning equipment in job shop and production environments.

Key Features

• IC908 grade solid carbide with TiAlN PVD coating for extended tool life in demanding turning applications
• MF chip breaker geometry for controlled chip evacuation at moderate feeds
• 0.1732-inch inscribed circle with 0.0157-inch corner radius for precise finish passes
• 83.5-degree parallelogram insert shape (X-code) with 7-degree relief angle
• Conforms to ISO 13399 standard for tool data representation
• Screw-lock holding method for secure, repeatable seating in compatible toolholders

Compatibility

Designed for use in screw-lock XCMT-style turning toolholders with C clearance and M tolerance specifications, as part of the ISCAR Multifunction Tools series. Compatible with workpiece material grades C1, C2, C6, and C7 per ISO designation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before changing inserts. Seat the insert fully in the pocket and tighten the clamping screw to the toolholder manufacturer's specified procedure. Inspect the insert pocket for debris or wear before seating a new insert to ensure proper support and prevent premature edge failure.