Needle sizes are like bead sizes; the larger the number the smaller the size. A #10 needle can be used with 10/0 beads, a #11 with 11/0, and so on. The #12 Sharps and #15 Beading needles are the smallest sizes available so they are best for 14/0 to 16/0 beads. However, some beads may have holes that are too small even for these needles.
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