K: Insert shape code (Specifies a unique 55° parallelogram geometry with elongated cutting edges).
N: Clearance angle code (0° negative clearance angle, meaning it relies on the tool holder's pocket inclination to provide necessary work clearance).
U: Tolerance class (Outlines precision limits across the insert's profile thickness and height).
X: Special/Proprietary clamping descriptor (Features a specific chip-breaker contour or a centralized mechanical alignment trait unique to profile copy tools).
Karcan
22: Size index (Commonly a reference index indicating the functional footprint, corner styling, or specific edge length class variant, typically aligned with a 16 mm basic blank scale like the standard KNUX 1604.. configuration).