Iscar 5567388 Indexable Drill Insert TOHT08NDJ IC908

Product Description

The ISCAR 5567388 is a solid carbide indexable drill insert designed for use in indexable drill bodies that accept TOHT-style triangle inserts. Manufactured to ISO 13399 standards, this insert carries the IC908 grade designation, which uses a submicron carbide substrate with a PVD coating process for wear resistance and edge stability. The insert features a 0.50 mm corner radius, an inscribed circle of 8.55 mm (0.3370 inches), and a 0.11-inch thickness. It is configured for right-hand cutting and incorporates the NDJ chipbreaker geometry. Installation and replacement are performed by machining professionals and tooling technicians during drill body setup or insert rotation.

This insert belongs to the ISCAR TRIDEEP series and is intended for indexable drilling operations across a broad range of workpiece materials. The IC908 grade with PVD coating is rated for universal material application, covering material groups H, K, M, P, and S - meaning it is suitable for hardened steels, cast irons, stainless steels, carbon steels, and heat-resistant superalloys. The NDJ chipbreaker geometry supports reliable chip control in through-hole and blind-hole drilling applications in both production shop and job shop environments.

Key Features

• IC908 grade: submicron carbide substrate with PVD coating for extended tool life
• NDJ chipbreaker geometry for controlled chip evacuation in drilling operations
• Right-hand cutting configuration
• Triangle (TOHT) insert shape with 0.50 mm corner radius
• Universal material compatibility across H, K, M, P, and S workpiece material groups
• Conforms to ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style replacement insert for ISCAR TRIDEEP series indexable drill bodies that accept TOHT08 triangle-style inserts with insert size code 08.

Installation Notes

Insert replacement and rotation should be performed by a qualified machining technician with the spindle powered down and the machine in a locked-out, tagged-out state per applicable shop safety procedures. Use the correct torx or hex key specified by the drill body manufacturer for the clamping screw - do not overtighten. Inspect the insert pocket and clamping screw for wear or debris before seating a new insert. Verify correct insert orientation and chipbreaker direction before resuming operation.