kärni osa, mille ülesandeks on kärni paigutamine vormis, mitte valandile vormi andmine (vt kärn; vrd kärnmärk, kärnmärk kärnkastis, kärnipesa), the portion of the core which is not designed to shape the casting, but serves as a means to ensure the proper positioning of the core in the mold (see: core; compare: core print, core print in a core box, core seat)