Tungaloy 6782087 Milling Insert LNMU06X5ZER-MJ AH3225

Product Description

The TUNGALOY 6782087 is a solid carbide milling insert carrying the ANSI and ISO designation LNMU06X5ZER-MJ AH3225. It is a double-sided, right-hand, negative-rake rectangle insert with four cutting edges, designed for indexable milling toolholders in the EXN06 and TXN06 cutter series. The insert is PVD-coated with TiAlN in manufacturer grade AH3225, which provides wear resistance and thermal stability during milling of steel and stainless steel. Thickness is 0.276 inches, the inscribed circle is 0.472 inches, and the corner radius is 0.0787 inches. The MJ chip breaker geometry suits general milling applications in ISO material groups P and M.

This insert is intended for indexable face milling and shoulder milling operations on steel (ISO P20) and stainless steel (ISO M20) workpieces. Compatible cutter series are the EXN06 and TXN06 platforms. Typical applications include roughing and semi-finishing passes where controlled chip formation is needed. The screw-held mounting method and double-sided geometry allow four index positions per insert before replacement, making this a cost-effective option in production milling environments. Installation is performed by machinists and toolroom technicians in CNC and manual milling setups.

Key Features

• Double-sided insert with 4 cutting edges for maximum index positions per insert
• TiAlN PVD coating in grade AH3225 for wear resistance on steel and stainless steel
• MJ chip breaker geometry for controlled chip evacuation in general milling
• Negative rake, honed cutting edge style for edge strength and stability
• Screw-held mounting for secure clamping in EXN06 and TXN06 cutter bodies
• Compliant with ISO standards; dual ANSI and ISO coded for easy cross-reference

Compatibility

Designed for use with TUNGALOY EXN06 and TXN06 cutter series toolholders. Suitable for machining steel and stainless steel workpieces in ISO material groups P20 and M20.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torx or hex key specified by the cutter body manufacturer to tighten the clamping screw to the toolholder seat - do not overtighten, as this can fracture the insert. Inspect the pocket seat and clamping screw for wear or debris before seating a new insert.