The Professor went over how to set your stone, and basically, you just had to attach it, and then they usually encased it in a two piece glass orb that fitted to the base of the wand, so the delicate crystal formation wasn't damaged.
But that looked like a real pain, and the delicate wire contraption could still be damaged from a hard impact, so you had to handle the wands with care, unless you got a finely crafted one with a sturdy frame. But even then, the glass casing was only so durable.
So, Wolfe changed the way that he attached it, and used the drill in the toolkit to put two perpendicular holes through the base of the wand, then created a glob of clear resin over the little pyramid.
He just shaped it into a basic egg, with the liquid solidifying through the base of the wand, so that it became a permanent addition. That would be much stronger, and impacts could no longer rearrange his alignment.
