Seco 00008575 TPG431F 883 Carbide Turning Insert

Product Description

The SECO 00008575 is a solid carbide, uncoated turning insert in the TPG-Flat Top series, designed for precision metal cutting on CNC lathes and turning centers. It features a triangular insert shape with a 60-degree included angle, a 0.5-inch inscribed circle, and a 1/64-inch corner radius (0.0157 inches). The insert carries a positive rake geometry, a honed cutting edge, and an 11-degree relief angle. With three cutting edges per insert, it delivers efficient tool life in demanding turning, facing, boring, and back-turning operations. Licensed machinists and CNC operators working on superalloys and titanium are the primary users of this insert.

This insert is primarily rated for superalloys and titanium (Material Grade S10, S20, S30) and is also suitable for secondary workpiece materials including steel, cast iron, and non-ferrous metals. Its uncoated bright finish makes it well suited for applications where coating adhesion on reactive materials is a concern. It is held in position by a clamp-style toolholder and is applicable across turning, facing, boring, and back-turning operations in both production and job-shop environments. The insert conforms to ANSI and ISO standards, with an ISO equivalent code of TPGN220404.

Key Features

• Solid carbide construction, uncoated (bright finish) for superalloy and titanium machining
• Triangular insert shape with 60-degree included angle and 11-degree relief angle (Clearance Code P)
• 0.5-inch inscribed circle with 1/64-inch corner radius for controlled chip geometry
• Positive rake, honed cutting edge with flat-top chip breaker
• Three cutting edges per insert for extended usable tool life
• Compatible with clamp-style toolholders; multi-use for turning, facing, boring, and back turning

Compatibility

Designed for use in clamp-style TPG-series toolholders conforming to ANSI and ISO standards for triangular inserts. The ISO equivalent insert designation is TPGN220404. Compatible with applications involving superalloys, titanium, steel, cast iron, and non-ferrous metals as noted in the secondary workpiece material codes M, K, N, and H.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and de-energize the machine spindle before seating or replacing any insert. Secure the insert firmly using the appropriate clamp and torquing hardware specified by the toolholder manufacturer. Inspect the insert seat and clamp for wear or debris before installation to ensure proper seating and prevent premature edge failure.