Iscar 5510091 Turning Insert Cpgt 3/8 in Diamond IC907

Product Description

The ISCAR 5510091 is a CPGT-style solid carbide turning insert designed for precision external and internal turning operations on CNC lathes and turning centers. Manufactured to the Isoturn series specification, this insert features an 80-degree diamond shape with a positive rake geometry and an 11-degree relief angle, making it well suited for light finishing and semi-finishing cuts. The IC907 grade substrate receives a PVD-applied TiAlN and TiN dual coating, delivering thermal resistance and edge durability when cutting a broad range of workpiece materials. Corner radius measures 0.0039 inches and maximum depth of cut is 0.079 inches.

This insert is used in positive-rake turning toolholders accepting CPGT inserts with a screw-clamping holding method. Typical applications include finish turning of steel, stainless steel, high-temperature alloys, and cast materials across residential and industrial machine shops. The SM chip breaker geometry promotes controlled chip evacuation during light-to-medium finishing passes. It is suited for machinists and CNC programmers working in aerospace, general manufacturing, and precision part production environments.

Key Features

• IC907 grade solid carbide with PVD TiAlN and TiN dual coating for extended edge life
• 80-degree diamond insert shape with positive rake for reduced cutting forces on finishing passes
• SM chip breaker designed for controlled chip formation during light-to-medium cuts
• 11-degree relief angle and CPGT tolerance class G geometry for accurate, repeatable seating
• Screw-clamp holding method provides rigid, repeatable insert positioning in compatible toolholders
• Conforms to ISO 13399 tooling data standards for use in CAM and tool management systems

Compatibility

Designed as an OEM-style replacement or direct-fit insert for positive-rake CPGT screw-clamp turning toolholders accepting a 3/8-inch inscribed circle, 80-degree diamond insert. Primary workpiece material codes H, K, M, N, P, and S are supported per the input specifications. Material grades C7 and C8 apply.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing inserts. Seat the insert fully into the toolholder pocket and secure with the clamping screw to the toolholder manufacturer's specified torque using the appropriate Torx or hex key. Inspect the insert pocket and screw for wear or damage before installation to ensure proper seating and prevent premature edge failure.