Iscar 5540020 Turning Insert Ccgt 3-0-AS IC20 Carbide

Product Description

The ISCAR 5540020 is a solid carbide uncoated turning insert in the CCGT style, designed for high-precision external and internal turning operations on CNC and manual lathes. Belonging to the Isoturn series, this insert features an 80-degree diamond shape with a positive rake geometry and a 7-degree relief angle, producing clean, accurate cuts with minimal cutting forces. The corner radius measures 0.0079 inches, supporting fine finishing passes. The IC20 grade is an uncoated fine-grain carbide formulation suited for light to moderate cutting conditions. This insert is installed by machinists and CNC operators working in production turning environments.

This insert is suited for turning cast iron, non-ferrous materials, and general steel workpieces, aligning with ISO primary workpiece material classifications K, M, and N. Typical applications include finish turning and light roughing on bar stock, shafts, and turned components where tight tolerances and surface finish quality are priorities. The screw-clamping holding method ensures secure seating in compatible CCGT-style toolholders. The Isoturn series is intended for general-purpose turning applications where a positive-rake insert geometry reduces cutting forces and tool pressure.

Key Features

• Solid carbide IC20 grade, uncoated, for sharp-edge finish turning on a range of workpiece materials
• 80-degree diamond insert shape (shape code C) with positive rake geometry and 7-degree relief angle
• Corner radius of 0.0079 inches supports fine surface finishes and tight-tolerance turning
• Screw-clamping holding method for secure, repeatable insert seating in compatible toolholders
• Maximum depth of cut of 0.0984 inches (2.50 mm) for controlled finish and light roughing passes
• Conforms to ISO 13399 standard for cutting tool representation and data exchange

Compatibility

Designed for use in CCGT-style screw-clamp turning toolholders that accept a 3/8-inch inscribed circle insert. Compatible with ISO code CCGT 32.50.5 toolholder seats. Suitable for workpiece material grades C2 and C3.

Installation Notes

Power down and lock out the lathe 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 clamping components for debris or wear before installation. Handle carbide inserts with care to avoid chipping the cutting edge prior to use.