Description
The SECO 02637880 is a solid carbide trigon milling insert in grade MS2500, designed for high-performance milling of superalloys, titanium, and steel. It carries a CVD-applied TiCN and Al2O3 coating over a medium-grain carbide substrate, providing wear resistance and thermal stability in demanding cutting conditions. The insert features a positive rake angle of 7 degrees, a T-Land cutting edge style, and a 12-degree relief angle. With 3 cutting edges and a neutral hand orientation, it suits a range of milling setups. This insert is specified by machinists, tooling engineers, and CNC operators working in aerospace, energy, and precision manufacturing environments.
This insert is suited for milling operations on superalloys and titanium as primary workpiece materials, with secondary application on steel and stainless steel. It fits the M06 chip breaker geometry, which is optimized for medium-condition cuts in difficult-to-machine alloys. The insert is compatible with SECO cutter series R218.19-20 and R217.21-R100, making it a fit for face and shoulder milling heads using the 218.19-100 series system. Sold individually with a minimum order quantity of 10 units.
Key Features
- Solid carbide medium-grain substrate with CVD TiCN and Al2O3 dual-layer coating
- Trigon (triangle) insert shape with 60-degree included angle and 3 cutting edges
- Positive rake angle (7 degrees) and T-Land cutting edge style for stable entry into hard alloys
- Corner radius of 0.0315 inches (1/32 inch) for controlled edge strength
- Maximum depth of cut 0.029 inches; inscribed circle diameter 0.278 inches
- M06 chip breaker geometry optimized for superalloys, titanium, steel, and stainless steel
- Screw-held, single-sided, neutral hand insert drop-in fit for compatible cutter bodies
Compatibility
Compatible with SECO cutter series R218.19-20 and R217.21-R100. ANSI and ISO code: 218.19-100T-M06. Insert series: 218.19-100.
Installation Notes
Installation is performed by machinists or tooling technicians using the appropriate Torx or hex key for the insert clamping screw specified by the cutter body manufacturer. Power down and lock out the spindle before seating or removing inserts. Inspect the insert pocket for chips or debris before installation to ensure full seating. Do not exceed the cutter body rated speed or the maximum depth of cut for this insert size.
Technical Specifications
- Insert Style: 218.19
- Insert Shape: Trigon (Triangle)
- Insert Material: Solid Carbide, Medium Grain
- Manufacturer Grade: MS2500
- Coating: TiCN and Al2O3
- Coating Process: CVD
- Insert Hand: Neutral
- Number of Cutting Edges: 3
- Inscribed Circle Diameter: 0.278 inches (0.2500 to 0.3000 inches range)
- Thickness: 0.1094 inches (7/64 inch; range 0.1000 to 0.1250 inches)
- Corner Radius: 0.0315 inches (1/32 inch)
- Maximum Depth of Cut: 0.029 inches
- Hole Diameter: 0.1181 inches
- Convex Radius: 0.3937 inches
- Relief Angle: 12 degrees
- Rake Angle: 7 degrees (Positive)
- Cutting Edge Style: T-Land
- Chip Breaker: M06
- Insert Holding Method: Screw
- Single or Double Sided: Single
- Included Angle: 60 degrees
- Primary Workpiece Material: Superalloys and Titanium (S)
- Secondary Workpiece Material: Steel and Stainless Steel (P, M)
- ANSI Code: 218.19-100T-M06
- ISO Code: 218.19-100T-M06
- Standards: ISO
- Weight: 0.02 pounds
- Minimum Order Quantity: 10
Standard Information
- Brand: SECO
- Manufacturer Part Number: 02637880









