Gammon Reel GAMMAGNET® Magnetic Case for use with Gammon Reel Plumb Line Designed for use with the #012 GAMMON REEL® plumb line reel in steel frame and steel beam construction. The extra-strong neodymium (rare earth) magnet will firmly hold your GAMMON REEL® plumb line reel and position your plumb bob 3 inches from any steel surface. (We have also provided a handy nail sleeve for use on wood surfaces.) The GAMMAGNET® magnetic case allows you the flexibility of using your GAMMON REEL® plumb line reel by itself or enclosing it in the GAMMAGNET® magnetic case as needed. Plumb line reel and plumb bob sold separately.   Mfg Part #: 15-015