Seco 74077372 SPGX07C1 T400D Indexable Drill Insert Carbide

Product Description

The SECO 74077372 is a solid carbide indexable drill insert designed for use in Perfomax series indexable drills. Carrying the SPGX07C1 designation, this insert features a square shape with a 90-degree included angle and an 11-degree relief angle. The 7.94 mm (0.3126 inch) inscribed circle and 0.125 inch thickness conform to the SPGX 0703 insert size standard. A PVD-applied TiAlN and TiN dual-layer coating provides wear resistance and thermal stability across a wide range of workpiece materials. Licensed machinists and CNC tooling technicians install this insert as part of routine indexable drill maintenance.

This insert is suited for universal material grade applications, with primary workpiece material codes covering H, K, M, N, P, and S material groups. That range covers hardened materials, cast iron, stainless and heat-resistant alloys, non-ferrous materials, steel, and superalloys. It fits standard Perfomax series drill bodies that accept the SPGX 0703 insert geometry, making it a direct drop-in replacement during scheduled insert rotation or after insert wear.

Key Features

• Square SPGX geometry with 90-degree included angle and 11-degree relief angle for positive cutting action
• PVD coating process applies TiAlN and TiN layers for extended tool life across multiple material types
• 7.94 mm inscribed circle (0.3126 inch) and 0.125 inch thickness meet SPGX 0703 size specifications
• C1 chipbreaker geometry promotes chip control during drilling operations
• Universal material grade compatibility covers six primary workpiece material groups
• Solid carbide substrate provides rigidity and edge retention under interrupted or continuous cutting loads

Compatibility

Designed for use in SECO Perfomax series indexable drill bodies that accept SPGX 0703 square carbide inserts. Compatible across workpiece material groups H, K, M, N, P, and S as defined by the manufacturer grade T400D designation.

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 locked out per standard LOTO procedures. Use the correct torx or hex key as specified by the drill body manufacturer when seating the insert clamp screw — do not overtighten. Inspect the insert pocket and clamping components for wear or debris before seating a new insert. Follow the drill body manufacturer's recommended starting parameters for feed rate and speed when running a new insert.