Description
The SECO 02959838 is a WNMG331-MF2 series indexable turning insert manufactured from solid carbide with a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr. Carrying the TP2501 grade designation, it is engineered for medium to general-purpose turning operations on steel and stainless steel. The insert features an 80-degree trigon shape with a neutral hand orientation and a chamfered and honed cutting edge style. With 6 available cutting edges per insert, it delivers a low cost-per-edge for high-volume machining environments. This insert is sold individually but requires a minimum order of 10 pieces.
This insert is suited for CNC turning centers and manual lathes in job-shop, production, and contract-machining environments. Its MF2 chip breaker geometry is designed for medium-finish turning passes on steel workpieces, with secondary capability on stainless steel and cast iron. Typical applications include boring, facing, and turning operations where consistent chip control and edge security are required. It is compatible with standard WNMG-style insert pockets and toolholders using clamp, pin, or lever-lock holding methods.
Key Features
- CVD Duratomic multilayer coating (TiCN, Al2O3, Cr) for wear resistance and thermal stability on steel
- MF2 chip breaker geometry optimized for medium-finish turning with reliable chip evacuation
- 6 cutting edges per insert reduces tooling cost in high-volume applications
- Chamfered and honed cutting edge style balances edge strength with surface finish quality
- Compatible with clamp, pin, and lever-lock toolholder holding methods
- Meets ANSI and ISO standards; ISO code WNMG060404-MF2
Compatibility
Designed for use in WNMG-style insert pockets accepting an 80-degree trigon insert with a 3/8-inch inscribed circle, 3/16-inch thickness, and 0.15-inch hole diameter. Compatible with toolholders using clamp, pin, or lever-lock insert retention. Primary workpiece material is steel (ISO P); secondary materials include stainless steel (ISO M) and cast iron (ISO K). Suitable for P10, P20, P30, and P35 material grade applications.
Installation Notes
Installation is performed by machining technicians or CNC setup personnel. Before indexing or replacing inserts, ensure the machine spindle is fully stopped and the toolholder is secured. Use the correct torque tool or clamping screw specified by the toolholder manufacturer do not overtighten, as this can fracture the carbide insert. Inspect the insert pocket and seating surface for chips or debris before seating a new insert.
Technical Specifications
- Insert Style: WNMG
- Industry Standard Number: WNMG331-MF2
- ISO Code: WNMG060404-MF2
- Manufacturer Grade: TP2501
- Insert Material: Carbide
- Coating Process: CVD
- Coating Designation: Duratomic (TiCN, Al2O3, Cr)
- Chip Breaker: MF2
- Insert Shape: Trigon (80 degrees)
- Insert Hand: Neutral
- Cutting Edge Style: Chamfered and Honed
- Number of Cutting Edges: 6
- Inscribed Circle: 3/8 inches (0.3750 inches)
- Insert Thickness: 3/16 inches (0.1874 inches)
- Corner Radius: 1/64 inches (0.0157 inches)
- Hole Diameter: 0.1500 inches
- Insert Length: 0.5118 inches
- Maximum Depth of Cut: 0.2480 inches
- Rake: Negative
- Relief Angle: 0 degrees
- Clearance Code: N
- Tolerance Code: M
- Insert Holding Method: Clamp, Pin, Lever Lock
- Primary Workpiece Material: Steel (Code P)
- Secondary Workpiece Material: Stainless Steel (Code M), Cast Iron (Code K)
- Material Grade: P10, P20, P30, P35
- Multi-Use Application: Boring, Facing, Turning
- Standards: ANSI, ISO
- Weight: 0.01 pounds
- Package Quantity: 1 insert per package
- Minimum Order Quantity: 10
Standard Information
- Brand: SECO
- Manufacturer Part Number: 02959838
