Description
The SECO 03091457 is a solid carbide milling insert carrying the ANSI and ISO designation SNMU120410TN-M10 in manufacturer grade MK2050. This double-sided, square-shaped insert features a neutral hand orientation, a negative rake angle of 20 degrees, and a T-Land cutting edge style. It is coated with a PVD-applied TiSiN and TiAlN multilayer finish, which provides wear resistance during high-demand milling operations. With 8 usable cutting edges and a maximum depth of cut of 0.3898 inches (12.00 mm), this insert is suited for productive face and shoulder milling. It is installed by machinists and toolroom technicians on compatible milling cutter bodies using a screw-holding method.
This insert is designed primarily for machining cast iron and is also rated for steel and hard materials, corresponding to ISO material groups K, P, and H. Its M10 chip breaker geometry supports medium-grain cutting conditions across those workpiece families. Typical applications include face milling, shoulder milling, and general-purpose metal removal in production and job-shop environments where a versatile, multi-material insert is needed. The insert is compatible with the R220.88-12 cutter series from SECO, part of the SNMU-12 series platform. The minimum order quantity is 10 units; this listing represents a package quantity of 1.
Key Features
- Double-sided square insert with 8 cutting edges for extended tool life per insert
- PVD-coated with TiSiN and TiAlN for improved wear resistance on cast iron and steel
- M10 chip breaker geometry optimized for medium-grain cutting conditions
- Negative rake angle (20 degrees) with T-Land edge prep for edge strength
- Maximum depth of cut of 0.3898 inches (12.00 mm)
- Screw-held, neutral hand fits both right- and left-hand cutter configurations
Compatibility
Designed for use in SECO R220.88-12 series milling cutter bodies as part of the SNMU-12 insert platform. ANSI and ISO code SNMU120410TN-M10 may also identify equivalent fits in other toolholders accepting the SNMU-12 insert geometry.
Installation Notes
Installation is performed by qualified machinists or toolroom technicians. Before changing inserts, ensure the spindle is fully stopped and the machine is locked out per your facility lockout/tagout procedure. Use the correct torque wrench and insert screw specified by the cutter body manufacturer do not overtighten, as this can fracture the carbide insert or damage the pocket seat. Inspect the pocket seat and clamping screw for wear or damage before seating a new insert.
Technical Specifications
- Insert Style: SNMU
- Insert Shape: Square
- ANSI / ISO Code: SNMU120410TN-M10
- Manufacturer Grade: MK2050
- Insert Material: Solid Carbide
- Coating / Finish: TiSiN and TiAlN (PVD)
- Number of Cutting Edges: 8
- Insert Hand: Neutral
- Single or Double Sided: Double
- Chip Breaker: M10
- Rake: Negative
- Rake Angle: 20 degrees
- Relief Angle: 0 degrees
- Cutting Edge Style: T-Land
- Included Angle: 90 degrees
- Inscribed Circle: 0.4724 inches (12.00 mm)
- Thickness: 0.1890 inches (13/64 inches)
- Width: 0.4724 inches (12.00 mm)
- Length: 0.4724 inches (12.00 mm)
- Corner Radius: 0.0394 inches (1.00 mm)
- Maximum Depth of Cut: 0.3898 inches (12.00 mm)
- Cutting Edge Effective Length: 0.4724 inches
- Insert Holding Method: Screw
- Primary Workpiece Material: Cast Iron (ISO K)
- Secondary Workpiece Materials: Steel (ISO P), Hard Material (ISO H)
- Cutter Series Compatibility: R220.88-12
- Series: SNMU-12
- Material Grade: Medium Grain
- Standards: ISO
- Package Weight: 0.04 pounds
- Package Quantity: 1
- Minimum Order Quantity: 10
Standard Information
- Brand: SECO
- Manufacturer Part Number: 03091457
