Seco 02960896 Turning Insert DCMT21.52-M3 TP1501 Carbide

Product Description

The SECO 02960896 is a solid carbide turning insert in the DCMT series, designed for precision metal cutting on CNC lathes and turning centers. It carries the TP1501 manufacturer grade and features a CVD-applied Duratomic multilayer coating — TiCN, Al2O3, and Cr — for extended tool life in steel and cast iron applications. The insert has a 55-degree diamond shape, a 0.25-inch inscribed circle, and a 1/32-inch (0.0315 inch) corner radius. Two cutting edges per insert and a chamfered and honed cutting edge style contribute to consistent chip control across multiple operations.

This insert is suited for general turning, facing, boring, and back turning in production and job-shop environments. It is optimized for primary use in steel (ISO material code P, grades P10 and P20) and is rated for secondary use in cast iron and hard materials (ISO codes K and H). The M3 chip breaker geometry supports medium-depth turning passes. Licensed machinists, CNC operators, and toolroom technicians typically select this insert for continuous to light-interrupted cuts on ferrous workpieces.

Key Features

• CVD Duratomic coating — TiCN, Al2O3, Cr layers — for thermal and wear resistance
• 55-degree diamond insert shape (Shape Code D) with 7-degree relief angle and positive rake
• M3 chip breaker geometry optimized for medium-depth turning passes
• Two cutting edges per insert; screw-style insert holding method
• Chamfered and honed cutting edge for stable entry and reduced built-up edge
• Multi-use capable: back turning, boring, facing, and turning in a single insert style

Compatibility

Designed as an OEM-style replacement insert for DCMT-series toolholders conforming to ANSI and ISO standards; ISO code DCMT070208-M3, industry standard number DCMT21.52-M3. Compatible with screw-lock DCMT toolholders accepting a 0.1142-inch hole diameter. Primary workpiece material is steel; secondary workpiece materials are cast iron and hard materials.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key for the insert clamping screw and seat the insert fully against the pocket locating surfaces before tightening. Inspect the insert pocket and seating surfaces for chips or debris prior to each insert change to prevent premature edge failure.