Seco 02615903 Dnmg 432-MR3 TS2000 Turning Insert

Product Description

The SECO 02615903 is a solid carbide turning insert in the DNMG 432-MR3 series, grade TS2000, with a multilayer TiAlN and TiN PVD coating. It features a 55-degree diamond (rhombic) shape, a 0.5 inch inscribed circle, and a 0.0315 inch corner radius. The MR3 chip breaker geometry is optimized for roughing and medium machining operations. With four usable cutting edges and a neutral hand orientation, this insert suits high-productivity turning applications on CNC lathes. Licensed machinists and CNC operators working in job shops, aerospace, and general manufacturing will encounter this insert in demanding metal-cutting work.

This insert is rated for stainless steel and superalloys as its primary workpiece materials, with steel, cast iron, and hard materials as secondary applications. It supports back turning, boring, facing, and standard turning operations. The PVD TiAlN and TiN multilayer coating delivers high wear resistance across P, M, K, S, and H material group codes. It conforms to ANSI insert code DNMG432 and ISO insert code DNMG150408, making it a drop-in fit wherever those standard designations are called out. Material grades M05, M10, S10, and S15 define its recommended cutting-parameter range.

Key Features

• DNMG 432-MR3 geometry with MR3 chip breaker for roughing and medium machining
• TS2000 grade with multilayer TiAlN and TiN PVD coating for high wear resistance
• 55-degree diamond insert shape with negative rake and negative side clearance
• Four cutting edges per insert for extended tooling economy
• Compatible with clamp, pin, and lever-lock insert holding methods
• Chamfered and honed cutting edge style for edge stability in interrupted and continuous cuts

Compatibility

Conforms to ANSI insert code DNMG432 and ISO insert code DNMG150408. Fits any DNMG-style toolholder accepting a 55-degree diamond insert with negative rake, a 0.5 inch inscribed circle, and clamp, pin, or lever-lock holding. Suitable for toolholders specifying clearance code N and tolerance code M per ANSI and ISO standards.

Installation Notes

Installation is performed by a qualified CNC operator or machinist following the toolholder manufacturer's seating and clamping procedure. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque driver specified by the toolholder manufacturer for the clamping screw — do not overtighten. Inspect the insert pocket for chips or debris before seating a new edge to ensure full contact and prevent premature edge failure.