Seco 02827992 Milling Insert ONMU090520ANTN-M15 MK2050

Product Description

The SECO 02827992 is a solid carbide milling insert in the ONMU-09 series, carrying the ANSI and ISO designation ONMU090520ANTN-M15. It features an octagon shape with 16 cutting edges and a double-sided design, maximizing tool life per insert. The insert is coated with a TiSiN and TiAlN multilayer applied via PVD process, paired with an M15 chip breaker and T-Land cutting edge style. With a negative rake angle of 15 degrees and a relief angle of 0 degrees, this insert is engineered for high-productivity milling in cast iron, steel, and hard materials. Grade MK2050 is a medium grain solid carbide substrate suited to interrupted and continuous cuts across those material groups.

This insert is designed for face milling and shoulder milling applications in machining environments where cast iron, steel, and hard materials are the primary workpiece materials. The neutral hand orientation makes it adaptable across setups. Compatible cutter series include the R220.48-09 and L220.48-09 milling cutter bodies. The screw-in holding method provides secure clamping during high-feed passes. Typical users are CNC machinists and toolroom technicians running production or job-shop milling operations on machining centers.

Key Features

• 16 cutting edges per insert on a double-sided octagon body for extended tool economy
• TiSiN and TiAlN PVD coating for heat resistance and wear performance in cast iron and steel
• M15 chip breaker geometry optimized for medium-grain carbide at negative rake
• T-Land cutting edge style for edge strength during interrupted cuts
• Neutral hand insert compatible with both right-hand and left-hand cutter bodies in the R220.48-09 and L220.48-09 series
• ISO-standard geometry with ANSI code ONMU090520ANTN-M15 for verified cross-reference

Compatibility

Compatible with R220.48-09 and L220.48-09 series milling cutter bodies. Insert style ONMU, size code 090520, fits cutter bodies designed for 09-series ONMU inserts secured by screw-in holding.

Installation Notes

Installation is performed by machining technicians using the appropriate Torx or hex key for the clamping screw specified by the cutter body manufacturer. Ensure the cutter body pocket and seating surfaces are clean and free of chips before seating the insert. Power down and lock out the spindle before changing inserts. Do not exceed the maximum depth of cut rating for the insert or the cutter body feed rate specifications provided by the cutter body manufacturer.