FROST spare Shrinking and Stretching Jaws for Shrinker/Stretcher set. Without a doubt one of the most versatile sheet metal working tools you could hope to find. The Shrinker / Stretcher will quickly and easily pull shape into either Steel up to 1.2mm or Aluminium up to 2mm . Use it to fabricate repair panels anywhere on your car but especially those awkward areas around headlights, around the edges of window frames, door edges, rain channels, wheel arch rims etc. With the Shrinker/Stretcher you don’t need to cut-and-weld in order to create curves in angled sections – simply shrink or stretch the metal into smooth even curvatures in a fraction of the time. Read “ How Do I Use the Shrinking / Stretching Machine? ” and “ 10 MUST-HAVE Restoration Tools ” from  Technical Article .