Jump Ring Maker – Patented Jig for Perfect Rings | USA MadePatented Jump Ring Cutting Jig Easy, Precise Ring Cutting Designed by jewelers and handcrafted in Missouri, this patented jump ring cutting jig helps you create clean, consistent jump rings with less strain and greater control. Trusted by chainmaille artists, wire wrappers, metalsmiths, and jewelers across the USA, the Elkhorn Silver Jump Ring Cutting Jig handles coils from 2. 5mm to 11mm without inserts, interchangeable channels, or complicated