Notes on Jump Rings
To use rings as "caps" for rosary beads, it's important to match bead and drill hole size to ring inner diameter (ID)
and looping wire gauge so that all the parts fit snugly together and don't overwhelm the bead.
Best way to start is by determining the wire gauge your bead will accept, and the size of the bead itself,
and choose the ring size last. Ring caps secure your wire loop laterally from pulling open when the rosary is handled.
Try these recommended bead size/ring inner diameter/looping wire combinations!
For 6mm to 7mm beads: 20g 1.75mm ID rings + 22g or 20g looping wire.
For 7mm to 9mm beads: 20g 2mm ID rings + 20g looping wire.
For 8mm to 10mm beads: 19g 2mm ID rings + 20g or 19g wire.
For 9mm and larger beads, or wide drills needing heavy wire: 19g 2.2mm ID rings + 19g or 18g wire.
In the 60 count packs (rings to use as "caps"), I always add a some spare rings to the count, as it's very easy
to lose one or two during rosary construction. Two 60 count packs are required to cap a 5 decade rosary.
Don't forget, you will have to close all the rings by hand to cap beads with them.
2.5mm ID and larger rings are used for rosary center connections and attaching the crucifix or devotional medals.
Stay conscious of your chain size--a 16g ring will not fit into 2mm x 3mm link chain!