Description
The SECO 03272990 is a solid carbide milling insert carrying ANSI and ISO designation OFER070405TN-ME15 in manufacturer grade MP2501. This single-sided, octagonal insert features a CVD-applied Duratomic coating combining TiCN and Al2O3 layers for extended wear resistance in demanding milling operations. It holds a positive rake angle of 16 degrees with a T-Land cutting edge style, delivers a maximum depth of cut of 0.2795 inches, and provides 8 usable cutting edges per insert. The corner radius is 0.0197 inches and the cutting edge effective length is 0.2921 inches. Licensed machinists and CNC operators install this insert into compatible wedge-clamp toolholders as a production-grade indexable cutting solution.
This insert is designed for milling steel as its primary workpiece material and also performs on stainless steel, cast iron, superalloys, and titanium. It suits both roughing and semi-finishing passes where controlled chip formation is required. The ME15 chip breaker geometry is optimized for medium cutting conditions in those material groups. The insert is compatible with the SECO R220.43-07 cutter series and fits toolholders accepting the OFER-07 series inserts. It is sold individually but carries a minimum order quantity of 10 units per purchase.
Key Features
- Octagonal shape with 8 cutting edges for maximum insert utilization
- CVD Duratomic coating (TiCN plus Al2O3) for thermal and abrasion resistance
- Positive 16-degree rake angle with T-Land edge for controlled chip load
- ME15 chip breaker geometry suited for medium-condition steel and stainless milling
- Fine grain carbide substrate supports sharp, consistent edges through full insert life
- Neutral hand orientation fits standard wedge-clamp toolholder setups
Compatibility
Designed for use with the SECO R220.43-07 cutter series and OFER-07 series toolholders using wedge-clamp insert retention. Suitable for milling steel, stainless steel, cast iron, superalloys, and titanium workpieces per ISO material codes P, M, K, and S.
Installation Notes
Installation should be performed by a qualified machinist or CNC tooling technician with the machine powered down and all axes locked before indexing or replacing inserts. Use the appropriate torx or hex key specified by the toolholder manufacturer when seating the wedge clamp do not overtighten. Inspect the insert pocket and clamp for chips or debris before seating a new edge. Verify depth-of-cut and feed rate parameters against the MP2501 grade recommendations before resuming operation.
Technical Specifications
- ANSI / ISO Code: OFER070405TN-ME15
- Manufacturer Grade: MP2501
- Insert Style: OFER
- Insert Shape: Octagon
- Insert Material: Solid Carbide, Fine Grain
- Coating / Finish: TiCN and Al2O3 (Duratomic CVD)
- Number of Cutting Edges: 8
- Inscribed Circle: 0.7063 inches
- Thickness: 0.1795 inches
- Corner Radius: 0.0197 inches
- Cutting Edge Effective Length: 0.2921 inches
- Maximum Depth of Cut: 0.2795 inches
- Rake Angle: 16 degrees
- Relief Angle: 26 degrees
- Rake: Positive
- Cutting Edge Style: T-Land
- Chip Breaker: ME15
- Insert Hand: Neutral
- Insert Holding Method: Wedge Clamp
- Single or Double Sided: Single
- Included Angle: 135 degrees
- Primary Workpiece Material: Steel
- Secondary Workpiece Materials: Stainless Steel, Cast Iron, Superalloys and Titanium
- Cutter Series Compatibility: R220.43-07
- Series: OFER-07
- Standards: ISO
- Package Dimensions: 4.33 inches L x 1.97 inches W x 0.47 inches H
- Weight: 0.28 pounds
- Minimum Order Quantity: 10
Standard Information
- Brand: SECO
- Manufacturer Part Number: 03272990









