Iscar 5505528 SOMT16GF IC908 Indexable Drill Insert

Product Description

The ISCAR 5505528 is a solid carbide indexable drill insert designed for use in indexable twist drills requiring precise, repeatable cutting performance. Carrying the SOMT insert style designation and manufactured to the IC908 grade with a PVD coating process, this insert features a square shape with a 90-degree included angle. The inscribed circle measures 16.00 mm (0.6300 inches), the corner radius is 1.20 mm (0.0472 inches), and the insert thickness is 0.2189 inches. It is engineered for installation by machinists and tooling technicians working with indexable drilling systems across a wide range of workpiece materials.

This insert is suited for use in the DR-TWIST series indexable drill system and is rated for universal primary workpiece material compatibility, covering ISO material groups H, K, M, P, and S. That range includes steels, stainless steels, cast irons, non-ferrous materials, and high-temperature alloys. Typical applications include general machining operations in job shop, production, and aerospace environments where consistent hole quality and extended tool life are priorities. The GF chipbreaker geometry supports chip control across this broad material range.

Key Features

• IC908 grade PVD-coated solid carbide construction for wear resistance across multiple material groups
• SOMT insert style with square shape and 90-degree included angle for use in DR-TWIST indexable drills
• 16.00 mm inscribed circle (0.6300 inches) with insert size code 16
• 1.20 mm corner radius (0.0472 inches) for controlled edge strength
• GF chipbreaker geometry designed for universal workpiece material compatibility
• Conforms to ISO 13399 standards for cutting tool data representation

Compatibility

Designed for use in the ISCAR DR-TWIST series indexable drill system. Compatible with ISO material grade classifications C1, C2, C6, and C7, and primary workpiece material codes H, K, M, P, and S per ISO 13399.

Installation Notes

Installation of indexable drill inserts should be performed by qualified machinists or tooling technicians. Ensure the drill body and insert pocket are clean and free of chips or debris before seating the insert. Power down and lock out the machine spindle before any insert change. Follow the drill body manufacturer's torque specification for the clamping screw using a calibrated torx or hex key driver.