Pepetools - Precision Engineered Professional Equipment

Jump Ring Mandrels - Sizes From 2.5mm - 12mm

Jump Ring Mandrels - Sizes From 2.5mm - 12mm - Main image
$36.58 $59 In stock

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
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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Amelia G. ★★★★★

I've been making jump rings by hand for years and these mandrels finally let me get consistent 2.5mm and 4mm coils instead of guessing with dowels. The steel feels solid and the starting hole makes it easy to thread the wire without slipping.

Harper P. ★★★★★

I picked up the individual 6mm mandrel since that's the size I use most for bracelet links, and it coils wire into perfectly even rings every time. The steel feels solid in hand, not flimsy like the cheap one I had before. Twenty sizes to choose from is a nice bonus if I ever need to branch out.

Madison M. ★★★★★

The chrome plating on these is genuinely nice, no burrs or rough edges on any of the twenty sizes. I've been using the 6mm and 8mm constantly for jump rings and they hold up great against pliers. Having every size from 2.5mm up to 12mm in one set means I stopped guessing and just grab the right one.