The SNMU 1305 series by Kyocera is built to handle demanding metal removal rates in heavy industrial face milling.
Its defining characteristic is a double-sided square profile that maximizes economy by offering four top and four bottom edges.
The "S" prefix marks the square shape, while the "N" signifies a zero-degree negative clearance for maximum core thickness.
This strong center mass enables the insert to withstand brutal impact forces without cracking during interrupted machining cuts.
The "13" size code designates a large 13 mm inscribed circle, creating a wide contact zone for deeper cuts.
The "05" thick-profile classification guarantees that the insert body remains physically stable under severe torque loads.
The proprietary PR15 industrial grade features an ultra-dense, multi-layered PVD MEGACOAT NANO ceramic coating matrix.
This advanced coating gives the cutting edge a hardness threshold of around 35 GPa to combat extreme abrasive wear.
It effectively blocks heat from penetrating the base carbide, surviving high oxidation temperatures up to 1,150°C.
Molded chipbreaker grooves are engineered across both faces to rapidly compress and deflect red-hot steel chips away.
Proper chip deflection prevents re-cutting, preserving the machined workpiece finish and lowering overall machine spindle load.
Machinists rely on this tooling configuration to optimize cycle times across CNC and vertical machining center (VMC) platforms.
It is highly recommended for face milling structural carbon steels, alloy steels, and abrasive nodular cast irons.
The insert's high-rigidity footprint actively dampens vibrations, preventing surface chatter marks on heavy components.
Ultimately, it represents a cost-effective, high-reliability solution for global automotive, aerospace, and general engineering sectors.
