Amazon.com: The Beadsmith Concave (Hollow)/Round Nose Piers – Wire Looping and Wire Bending Plier – 5 inches (127mm) – Steel Head & Double Leaf Springs – European Design & Quality – Tool
5" Wolf Groovy Looping Pliers - Without Grooves, PLR-753.00 | PMC Supplies
AFW Wire Looping Pliers
How to Use the One Step Wire Looping Pliers from BeadSmith - YouTube
Amazon.com: The Beadsmith 1-Step Looper Pliers, 3mm, 24-18g Craft Wire, Instantly Create Consistent Loops for Rosaries, Earrings, Bracelets, Necklaces and Wire Jewelry in One Step