D: Rhombic geometry featuring a 55° profile nose angle, providing excellent clearance for contour profiling and face turning.
N: Negative clearance angle (0°), which grants dual-sided design parameters for a total of 4 usable cutting edges.
M: Precision manufacturing tolerance class across the insert thickness and profile height.
G: Configuration featuring a central clamping countersunk hole paired with double-sided molded chipbreakers.
15: Specifies a nominal cutting edge length of 15.5 mm.
06: Indicates a robust insert body thickness of 6.35 mm.
08: Standard 0.8 mm corner (nose) radius, optimizing tool edge strength while maintaining dependable workpiece surface finishes.
CJ: A specialized medium-to-rough chipbreaker profile. It features an expanded chip pocket designed to curl and break stringy chips smoothly under high metal removal rates.
215K: A heavy-duty, wear-resistant CVD multi-layer coated grade (such as Boehlerit Steeltec or premium ceramic-carbide matrices). It is equipped with an integrated heat-shielding
(Alumina) layer and a wear-detection color indicator for extended high-speed turning cycles.