Iscar 5504859 SOMT09GF IC908 Indexable Drill Insert

Product Description

The ISCAR 5504859 is a square SOMT-style indexable drill insert designed for use in ISCAR DR-TWIST indexable drill bodies. Manufactured from solid carbide with a PVD coating and IC908 grade designation, this insert is engineered for multi-material cutting applications. The 9.00 mm (0.3543 inch) inscribed circle and 0.60 mm (0.0236 inch) corner radius suit a wide range of hole-making operations. The GF chipbreaker geometry promotes chip evacuation during drilling cycles. Licensed machinists, CNC operators, and toolroom technicians install this insert as a direct replacement in compatible DR-TWIST drill bodies.

This insert is suited for both production and job-shop drilling environments. It carries a universal primary workpiece material designation, covering ISO material groups H, K, M, P, and S, meaning it performs across cast iron, non-ferrous alloys, stainless steel, carbon and alloy steels, and high-temperature superalloys. The IC908 PVD-coated grade is selected for applications where edge integrity and wear resistance are priorities. The insert fits 09-size seats in ISCAR DR-TWIST indexable drill bodies operating on CNC machining centers or manual drill presses with appropriate toolholding.

Key Features

• IC908 PVD-coated solid carbide grade for wear resistance across universal material groups
• Square SOMT insert style with 90-degree included angle for precise seating in matching pockets
• 9.00 mm inscribed circle (0.3543 inches) with 0.60 mm corner radius for controlled cutting edge engagement
• GF chipbreaker geometry designed to promote chip control during drilling operations
• Compliant with ISO 13399 tooling data standards for CAM and tooling management system integration
• Insert size code 09T306 for straightforward replacement ordering and pocket matching

Compatibility

Designed for use in ISCAR DR-TWIST series indexable drill bodies accepting 09-size SOMT square insert seats. Verify pocket geometry and clamping screw size against the specific DR-TWIST body specification before installation.

Installation Notes

This insert is installed by qualified machinists or CNC toolroom technicians. Before changing inserts, confirm the machine spindle is stopped and the tool is secured in a vise or tool block. Use the correct torx or hex key to the clamping screw as specified by the drill body manufacturer — do not overtighten, as carbide inserts are brittle and can fracture under excessive clamp force. Inspect the insert pocket for chips or damage before seating a new insert.