Kyocera new insert grade and chipbreaker geometry combination suits challenging milling tasks

​Kyocera has added the new PR015S MEGACOAT HARD insert grade for stable machining of hardened materials to its MFH high feed cutter series.

In combination with the likewise new GH chipbreaker, it is ideal for a wide range of applications and especially for difficult milling operations. Both extensions are integrated into the MFH Harrier and MFH Mini series.

The GH chipbreaker has a convex and robust cutting-edge design, so that cutting forces are reduced when entering the workpiece. The high feed tool also has excellent breaking resistance. Along with the PR015S insert grade, the new chipbreaker is suitable for stable machining of hardened material.

PR015S is characterised by its high hardness and extremely heat-resistant PVD coating MEGACOAT HARD, which improves wear resistance. The combination of the GH chipbreaker and the PR015S also reduces heat cracks and increases the breaking strength of the insert.

Different geometries offer the right solution with a maximum cutting depth of up to 5 mm.

Since its introduction in 2014, Kyocera has continuously expanded its range of MFH cutting tools. This range now includes diameters from 8 to 160 mm. All inserts in the series feature a convex, spiral edge design, making them ideal for various shoulder, ramp, slot, plunge, helix and face-milling applications. The MFH was Kyocera's first high feed milling tool and completes the comprehensive line of cutting tools.