Product Description
The SECO 02755040 is a solid carbide turning insert in the DCMT series, designed for precision metal cutting on CNC lathes and turning centers. It carries a multilayer PVD TiAlN and TiN coating in grade CP500, which provides wear resistance and thermal stability during interrupted and continuous cuts. The insert features a 55-degree diamond shape, a 3/8-inch inscribed circle, a 1/64-inch corner radius, and a neutral hand orientation. The MF2 chip breaker geometry produces a positive rake angle, reducing cutting forces on difficult materials. Licensed machinists and CNC operators install this insert using a screw-holding method.
This insert is engineered primarily for stainless steel (ISO material code M) and is also rated for steel, cast iron, and super-alloys including titanium (ISO codes P, K, and S). It suits material grades M10, M20, and M30. Typical applications include back turning, boring, facing, and general turning operations in both production and job-shop environments. The chamfered and honed cutting edge style supports tight-tolerance finishing and semi-finishing passes where surface integrity on stainless and high-alloy workpieces is critical.
Key Features
- CP500 grade with multilayer PVD TiAlN and TiN coating for extended tool life on stainless steel
- MF2 chip breaker geometry with positive rake for reduced cutting forces
- 55-degree diamond insert shape (code D) with chamfered and honed cutting edge
- Neutral hand orientation supports flexible toolholder pairing
- Screw-holding mount for secure, repeatable insert indexing
- Two cutting edges per insert; compatible with back turning, boring, facing, and turning operations
Compatibility
Designed for DCMT-style toolholders conforming to ANSI and ISO standards. Industry standard insert number DCMT32.51-MF2 (ISO equivalent DCMT11T304-MF2). Fits toolholders accepting a 3/8-inch inscribed circle DCMT insert with a 0.1772-inch hole diameter and screw-clamp retention.
Installation Notes
Installation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque screwdriver specified by the toolholder manufacturer for the insert clamping screw to avoid seat damage. Inspect the insert pocket and seating surface for chips or debris before seating each new insert.
Technical Specifications
- Insert Style: DCMT
- Series: DCMT-MF2
- Manufacturer Grade: CP500
- Insert Material: Solid Carbide
- Coating: TiAlN and TiN (Multilayer PVD)
- Insert Shape: Diamond 55 degrees
- Included Angle: 55 degrees
- Inscribed Circle: 3/8 inches (0.3750 inches)
- Corner Radius: 1/64 inches (0.0157 inches)
- Insert Thickness: 5/32 inches (0.1563 inches)
- Insert Length: 0.9134 inches
- Hole Diameter: 0.1772 inches
- Maximum Depth of Cut: 0.4409 inches
- Relief Angle: 7 degrees
- Rake: Positive
- Insert Hand: Neutral
- Chip Breaker: MF2
- Cutting Edge Style: Chamfered and Honed
- Number of Cutting Edges: 2
- Insert Holding Method: Screw
- Primary Workpiece Material: Stainless Steel (ISO M)
- Secondary Workpiece Materials: Steel, Cast Iron, Super-alloys and Titanium (ISO P, K, S)
- Material Grade: M10, M20, M30
- Coating Process: PVD
- Multi-Use Applications: Back Turning, Boring, Facing, Turning
- Standards: ANSI, ISO
- ISO Code: DCMT11T304-MF2
- Industry Standard Number: DCMT32.51-MF2
- UNSPSC Code: 23242105
- Weight: 0.01 pounds
- Package Quantity: 1 insert per package
- Minimum Order Quantity: 10
Standard Information
- Brand: SECO
- Manufacturer Part Number: 02755040
