Iscar 5540009 Turning Insert Dcgt 2-1-AS IC20 Carbide

Product Description

The ISCAR 5540009 is a solid carbide uncoated turning insert in the DCGT style, part of the ISCAR Isoturn series. It features a 55-degree diamond insert shape with a positive rake geometry, a 1/4-inch inscribed circle, and a 1/64-inch corner radius. The 7-degree relief angle and grade IC20 carbide substrate make this insert well-suited for finishing and light cutting operations on a range of workpiece materials including cast iron, non-ferrous metals, and steel. It is installed via screw-holding method and is handled by machinists and CNC turning specialists in precision metalworking environments.

This insert is designed for use in CNC and manual turning applications where tight tolerances and clean surface finishes are required. The AS chip breaker geometry and positive rake help control chip flow during light-to-medium cuts. Primary workpiece material compatibility covers ISO material groups K, M, and N, with broader compatibility across H, K, M, N, P, and S material codes. The Isoturn series provides consistent dimensional accuracy for high-volume production and job shop turning operations alike.

Key Features

• Solid carbide IC20 grade substrate with no coating for consistent performance on non-ferrous and cast iron materials
• DCGT insert style with positive rake and AS chip breaker for controlled chip evacuation during finish turning
• 55-degree diamond insert shape with clearance code C and tolerance code G for precise fitment
• 1/4-inch inscribed circle (0.2500 inches) and 1/64-inch corner radius (0.0156 inches) for light, accurate profiling
• Screw-holding method for secure seating in compatible DCGT toolholders
• Conforms to ISO 13399 standard for tool data representation

Compatibility

Designed for use in DCGT-style screw-clamping turning toolholders compatible with insert size code 2-1. Suitable for ISO material groups K, M, and N as primary workpiece materials, with broader applicability across H, K, M, N, P, and S material codes per ISO classification.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or replacing the insert. Use the appropriate torx or hex key to tighten the clamping screw to the toolholder manufacturer specification. Inspect the insert pocket for debris or wear before installing a fresh insert to ensure proper seating and dimensional accuracy.