Iscar 5505240 SOMT09DT IC908 Indexable Drill Insert

Product Description

The ISCAR 5505240 is a solid carbide indexable drill insert with the SOMT09DT geometry and IC908 manufacturer grade. It is designed for use in indexable insert drills where reliable, repeatable cutting performance is required across a broad range of workpiece materials. The insert measures 0.354 inches inscribed circle diameter (9.00 mm), with a thickness of 0.150 inches and a corner radius of 0.024 inches (0.60 mm). The IC908 grade features a PVD coating process, delivering a hard, wear-resistant surface suited for demanding drilling applications in steel, stainless, cast iron, and high-temperature alloys.

This insert fits within the DR-TWIST series of indexable drills and is classified for use across multiple material grades including C1, C2, C6, and C7. Its universal primary workpiece material designation covers ISO material groups H, K, M, P, and S, making it applicable to a wide range of ferrous and non-ferrous materials. Typical installation scenarios include production drilling on CNC machining centers and lathes where insert drills are used in place of solid drills to reduce tooling cost per hole. The DT chipbreaker geometry promotes efficient chip formation and evacuation in through-hole and blind-hole drilling operations.

Key Features

• IC908 PVD-coated solid carbide grade rated for universal workpiece material groups H, K, M, P, and S
• SOMT square insert style with DT chipbreaker for controlled chip formation during drilling
• 9.00 mm (0.354 inches) inscribed circle with insert size code 09T306
• 0.60 mm (0.024 inches) corner radius for edge strength and surface finish consistency
• Conforms to ISO 13399 standard for cutting tool data representation
• DR-TWIST series compatibility for direct OEM-style replacement in matched toolholders

Compatibility

Designed for use in ISCAR DR-TWIST series indexable drill bodies that accept SOMT09 insert style inserts with insert size code 09T306. Refer to the DR-TWIST toolholder documentation to confirm seat geometry and clamping screw requirements before ordering.

Installation Notes

Indexable drill insert replacement should be performed by a qualified machinist or toolroom technician with the machine powered down and all axes locked. Use the correct torx or hex key specified by the toolholder manufacturer when seating and torquing the clamping screw. Inspect the insert pocket for chips, burrs, or wear before seating the new insert. Do not exceed the recommended cutting parameters for the IC908 grade as specified in the ISCAR DR-TWIST application data.