"THE TRADES FIRST ROUND MAGNUM JIG"
Makes rounded magnums sizes 5, 7, 9, 11, 13 and 15. Will also make traditional flats and square magnums up to 15 needles wide.
DISCLAIMER: These jigs are for getting needle groupings tacked together in proper formation. All other soldering needs to be done off of the jigs. I always thought that this was obvious and did not need to be said but these are made of plastic and will melt when exposed to extreme heat.