Can I bring 2 custom made kitchen knives as gifts in checked luggage?

Yes, just put them into the checked luggage.

Those that meet one of the following criteria can be identified as regulated knives:

1. Dagger: single-, double-, or multi-edged knives with shank, grid, and blood groove, and the angle of the blade is less than 60 degrees
2.Triangular scraper: machining tool with three blades
3.Spring knife with self-locking device (jumping knife): After the knife body is unfolded or ejected, the self-locking folding knife can be fixed by the spring in the knife handle or the lock
4.Other similar single-edged, double-edged, and triangular-edged knives: various types of single-edged, double-edged, and multi-edged knives with a tip angle of less than 60 degrees and a blade length of more than 150 mm
5.Other single-, double- and multi-blade knives with angles greater than 60 degrees and blade lengths over 220 mm
HOWEVER,
All types of martial arts, crafts, gifts and other knives without cutting edges and with a radius R of the tip of the blade greater than 2.5 mm do not belong to the category of controlled knives.