Seco 00040604 Turning Insert TNMP432-M1-36 Carbide Neutral

Product Description

The SECO 00040604 is a solid carbide turning insert in the TNMP-M1 series, designed for precision metal removal in demanding machining applications. This uncoated, neutral-hand insert carries a triangular shape with a 60-degree included angle, a 1/2-inch inscribed circle, and a 1/32-inch corner radius. It is manufactured to ANSI and ISO standards and carries an ISO equivalent designation of TNMG220408-M1. The honed cutting edge and M1 chip breaker geometry are suited for high-heat, high-strength workpiece materials. Machinists and CNC operators select this insert when working with superalloys and titanium where edge integrity and thermal stability are critical.

This insert is engineered primarily for superalloys and titanium (Material Codes S10, S20, S30) and is also rated for secondary use on stainless steel, cast iron, non-ferrous metals, and hardened materials (secondary codes M, K, N, H). Typical applications include turning, facing, boring, and back turning operations on CNC lathes and turning centers in aerospace, oil and gas, and precision manufacturing environments. The negative rake geometry and zero-degree relief angle are appropriate for rigid setups where surface finish and dimensional accuracy are required. Licensed machinists and CNC programmers are the primary installers and operators of this tooling.

Key Features

• Solid carbide, uncoated (bright) construction in grade 883 for superalloy and titanium machining
• Triangular insert shape with 60-degree included angle and 6 usable cutting edges
• M1 chip breaker geometry with honed cutting edge for controlled chip evacuation
• Neutral hand orientation for flexible setup on right- or left-hand toolholders
• Compatible with clamp, pin, and lever lock holding methods
• Multi-use capability: turning, facing, boring, and back turning

Compatibility

Designed for use in TNMP-style toolholders that accept a 432-size triangular insert with clamp, pin, or lever lock holding. ISO equivalent insert designation is TNMG220408-M1. Industry standard number is TNMP432-M1. Verify toolholder bore and clamping system before installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's specifications. Power down and lock out the machine spindle before changing inserts. Use appropriate insert handling tools to avoid contact with the cutting edge, which can cause injury or edge chipping. Confirm correct insert orientation and secure clamping before resuming any cutting operation.