?Bead hole sizes listed below are approximate and may vary.
When they make holes, it will done from both side. So the center part of the hole might be smaller.
As harder stones, the hole size tend to be smaller. You might make a hole bigger a little bit using a reamer.
Gem Stone Beads
|Beads Size||Hole Size||Wire Size (Maximum)|
|Beads||Hole Size||Wire Size (Maximum)|