The materials needed to drill small walnuts are: small walnuts, small electric drills and drill bits.

First, put the drill on a small electric drill.

Second, take out a small walnut.

Third, aim the electric drill at the hole at the bottom of the walnut and make a hole.

Fourth, then change the bottom on the other side, and punch holes after the same alignment.

5. Finally, completely insert the drill bit into the walnut and confirm that the hole has been opened.