Seco 02959983 Turning Insert TNMG332-M3 TP2501 Carbide

Product Description

The SECO 02959983 is a solid carbide turning insert in the TNMG332-M3 series, designed for precision turning operations on CNC lathes and machining centers. It carries a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr, assigned manufacturer grade TP2501. The triangular insert geometry provides 6 usable cutting edges with a neutral hand orientation and a 0-degree relief angle (clearance code N). Corner radius measures 0.0315 inches, inscribed circle diameter is 0.3750 inches, and maximum depth of cut reaches 0.5709 inches. The M3 chip breaker geometry delivers a chamfered and honed cutting edge style suited to moderate to heavy roughing and semi-finishing passes.

This insert is intended for machining steel as the primary workpiece material (ISO material code P), with secondary suitability for stainless steel (code M) and cast iron (code K). Material grades P10, P20, P30, and P35 are covered by this grade and coating combination. Applicable operations include turning, facing, boring, and back turning, making it a practical multi-use insert for shops running mixed-material programs. The M3 chip breaker is optimized for continuous and interrupted cuts on steel components in both production and job-shop environments. Licensed machinists and CNC operators are the primary installers.

Key Features

• CVD Duratomic coating: TiCN plus Al2O3 plus Cr layers for extended tool life on steel and stainless
• 6 cutting edges per insert — negative rake triangular geometry maximizes value per insert
• M3 chip breaker with chamfered and honed edge for controlled chip formation across P, M, and K materials
• Maximum depth of cut 0.5709 inches supports roughing and semi-finishing in a single insert style
• Compatible holding methods: clamp, pin, and lever lock toolholders
• Conforms to ANSI and ISO standards; ISO code TNMG160408-M3, industry standard number TNMG332-M3

Compatibility

Designed for use in TNMG-style toolholders that accept clamp, pin, or lever lock holding methods. Fits standard TNMG 332 seat geometry per ANSI and ISO specifications. Primary workpiece material is steel (P10-P35); secondary materials include stainless steel and cast iron.

Installation Notes

Insert replacement should be performed with the machine spindle locked out and all axis drives disabled per standard lockout/tagout procedures. Use the appropriate torque wrench and manufacturer-specified seating hardware for clamp, pin, or lever lock toolholders to ensure proper insert seating without over-stressing the carbide. Inspect the insert pocket and shim seat for damage or debris before seating a new edge. Verify depth-of-cut and feed rate parameters are within the grade and chip breaker recommendations before resuming cuts.