Seco 02575281 Milling Insert LNKT050416PPTN4-M06 F40M

Product Description

The SECO 02575281 is a solid carbide milling insert carrying the ANSI/ISO designation LNKT050416PPTN4-M06 and manufactured to the F40M fine-grain carbide grade. The insert features a rectangular shape with a neutral hand orientation, a negative rake angle of 15 degrees, and a T-Land cutting edge style. Four usable cutting edges are available on this double-sided insert. A PVD-applied TiAlN and TiN dual coating provides thermal resistance and wear protection suited to demanding milling operations. The insert measures 0.3937 inches in length, 0.1969 inches in width, and 0.1850 inches in thickness, and weighs approximately 0.02 pounds.

This insert is designed for face and shoulder milling applications where steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium are the workpiece materials. It is compatible with the SECO 335.18 cutter series and uses the M06 chip breaker geometry, which balances chip control with cutting-edge strength across a range of depths of cut up to 0.1969 inches. It is held in the cutter body by a screw-clamp method and is suited for use in production machining environments where consistent tool life and repeatable surface finish are priorities. Machinists and tooling technicians in aerospace, general metalworking, and job-shop environments are the typical end users.

Key Features

• Solid carbide F40M fine-grain substrate for toughness and wear resistance in interrupted and continuous cuts
• PVD-applied TiAlN and TiN dual coating for elevated-temperature resistance and extended tool life
• Double-sided insert with 4 cutting edges to maximize cost-per-edge value
• Negative rake geometry with T-Land edge prep for strength in steel and cast iron applications
• M06 chip breaker optimized for moderate chip loads across steel, cast iron, and superalloy workpieces
• Compatible with the SECO 335.18 cutter series; screw-held mounting for positive insert location

Compatibility

Designed for use with the SECO 335.18 cutter series. ANSI and ISO code: LNKT050416PPTN4-M06. Primary workpiece material codes P, K, and S cover steel, cast iron, and superalloys and titanium; secondary codes K and N cover cast iron and non-ferrous metal.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or tooling technician with the spindle fully stopped and the machine locked out per facility lockout/tagout procedures. Inspect the insert pocket and clamping screw for wear or damage before installing a new insert. Seat the insert fully into the pocket before engaging the clamping screw, and do not use damaged or out-of-specification toolholders. Follow the cutter manufacturer's guidelines for screw torque and insert indexing sequence.