Iscar 5506615 SOMT12DT IC9080 Indexable Drill Insert

Product Description

The ISCAR 5506615 is a square indexable drill insert designed for use in indexable twist drills requiring a reliable, wear-resistant cutting edge. Manufactured from solid carbide with an IC9080 CVD coating, this insert carries the SOMT style designation with a DT chipbreaker geometry. It features a 0.5000-inch inscribed circle, a 0.0315-inch corner radius, and a 90-degree included angle. The IC9080 grade is a CVD-coated carbide formulation suited for interrupted and continuous cuts in ferrous materials. Licensed machinists and tooling technicians install this insert as a direct component in DR-TWIST series indexable drill bodies.

This insert is intended for metalworking operations targeting cast iron and steel workpieces, corresponding to ISO material groups K and P. It fits into indexable drill tooling systems where SOMT-style inserts are required. The DT chipbreaker geometry aids in chip control during through-hole and blind-hole drilling at moderate to high feed rates. Typical applications include production drilling on CNC machining centers and turning centers in both job shop and high-volume manufacturing environments.

Key Features

• IC9080 CVD-coated solid carbide grade for cast iron and steel cutting
• SOMT insert style with DT chipbreaker for controlled chip evacuation
• Square shape with 90-degree included angle for consistent indexing
• 0.0315-inch (0.80 mm) corner radius reduces edge chipping on entry and exit
• Compliant with ISO 13399 tooling data standards for easy tool assembly integration
• DR-TWIST series compatible geometry for direct drop-in replacement

Compatibility

Designed as an OEM-style replacement insert for DR-TWIST series indexable drill bodies requiring SOMT-style square inserts with a 12.70 mm inscribed circle and DT chipbreaker. The model number SOMT 120408-DT IC9080 identifies this insert within ISCAR tooling catalogs.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or tooling technician using the appropriate torx or hex key specified for the drill body. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the insert pocket for chips, debris, or wear before seating a new insert, as contamination in the pocket directly affects cutting performance and insert life. Follow the drill body manufacturer torque and clamping sequence guidelines for the specific tool holder in use.