Seco 74077374 SPGX11C1 T400D Indexable Drill Insert Carbide

Product Description

The SECO 74077374 is a solid carbide indexable drill insert designed for use in the Perfomax indexable drill system. Featuring an SPGX insert style with a square shape and 90-degree included angle, this insert carries a T400D manufacturer grade and a PVD-applied TiAlN and TiN coating for extended tool life across a broad range of workpiece materials. The inscribed circle measures 11.51 mm (0.4531 inches), thickness is 0.156 inches, and the C1 chipbreaker geometry promotes controlled chip evacuation during drilling operations. Licensed machinists and CNC tooling technicians use this insert in production drilling applications.

This insert is rated for universal primary workpiece material compatibility, covering material codes H, K, M, N, P, and S. That range includes hardened steels, cast iron, stainless and heat-resistant alloys, non-ferrous metals, carbon and alloy steels, and superalloys. It fits the SECO Perfomax indexable drill series and is suited for high-volume production environments in both job shop and manufacturing settings where consistent hole quality and repeatable insert indexing are required.

Key Features

• SPGX insert style with square shape and 90-degree included angle for precise drill geometry
• T400D grade with PVD-applied TiAlN and TiN dual coating for wear resistance and heat management
• C1 chipbreaker geometry supports controlled chip flow in a wide range of materials
• 11.51 mm inscribed circle with 0.156-inch thickness for compatibility with standard Perfomax drill bodies
• Universal material grade covers six workpiece material codes including ferrous, non-ferrous, and superalloy families
• 11-degree relief angle reduces cutting-edge friction during entry and through-drilling

Compatibility

Designed for use with the SECO Perfomax indexable drill series. Insert size code 11, size designation 11T3. Compatible across workpiece material codes H, K, M, N, P, and S as specified by the manufacturer.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician with the spindle fully stopped and the machine in a locked-out, tagged-out state. Use the correct torx or hex key as specified by the Perfomax drill body manufacturer to achieve proper clamping torque without over-tightening. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert. Ensure the insert is fully seated and secure before returning the tool to service.