How To Assemble Your Saber
Insert your blade in to the emitter and insert two screws at opposite sides in to the pre threaded holes. Tighten the screws with the allen key provided until you pinch the blade. There are no holes in the blade - the screws pinch the blade to keep it in place.
Your saber may have a shallow neck (Praxeum, Luke, Obi etc). If so you can use four screws to help secure the blade in place.