Jump Ring Mandrels - Sizes From 2.5mm - 12mm

Please select from the dropdown box if you would like either a full set of mandrels or just an individual size.    Twenty mandrels machined from high quality steel and chrome plated. Starting hole for wire on 3mm mandrel and up. Half millimeter increments, sizes include. Each mandrel is precision machined from hardened tool steel for long life. Mandrels include marking to show the corresponding size.  2.5MM - 12MM Available as a full set, or individually Each mandrel is 100mm in length (4") Precision machined from tool steel Works great to wrap gold, silver, copper, and more into precision rings for cutting, which can then be used to make a necklace, jump ring, and much more.  .10" - .47" MM INCHES 2.5 0.10 3 0.12 3.5 0.14 4 0.16 4.5 0.18 5 0.20 5.5 0.22 6 0.24 6.5 0.26 7 0.28 7.5 0.30 8 0.31 8.5 0.33 9 0.35 9.5 0.37 10 0.39 10.5 0.41 11 0.43 11.5 0.45 12 0.47