Nylon jaw pliers are a must for straightening wire, especially colored wire. Not just any nylon jaw will do and ours are a high quality nylon which will not damage delicate wire. Made with stainless steel, box-joints, comfort grips and this version has a spring.
Find this tool at: http://www.jewelrytools.com/eurotool/nylon-jaw-pliers/Nylon-Jaw-Plier-with-Spring.html
Find more at http://www.jewelrytools.com