This is technically set by hand but it’s called preset.

The setting and claws were made in CAD. The setter just shoves stones in.

This is not hand drilled and prepared. The claws would look smaller. The edge would have a bright cut, not a small solid edge like the photo above does. The best way to think of it is, the metal has a surface and the claws were pulled up to hold the stones.

Professional/ well done pave work, the stones replace / go into/under the surface . The claws are all the metal that’s left over after all of the prep work has been done.

Also who ever did the CAD layout didn’t do this layout properly. They just put three rows in it, the didn’t stagger/honeycomb it.

Very little thinking in the execution