Shrinker/Stretchers are used to create smooth radius curves in sheet metal, without cutting. Welding, heating or hammering. The Shrinker contracts the metal for inside curves and the Stretcher. Expands the metal for outside curves. These machines are predominantly used on body panels for cars. And aeroplanes, however are also utilised in many other areas to fabricate or repair metal work. Where the combination of a curve and an angle is required. 90mm(3-1/2)THROAT -This power stretcher shrinker equips with a deep throat of 90mm depth that. Covers more of those tricky shrinking and stretching jobs than. STRETCHER & SHRINKER 2-IN-1 DESIGN – There is no need for two different machines for metal. Just replace a part when in need, saving storage space. APPLICATION – It can deal with 18 gauge mild steel, 16 gauge aluminum; the thickness can also up to. EAST OPERATION AND LIGHT WEIGHT. It is light weight, easy operation; at the same time, it will. DURABLE – It is designed with a cast iron body for long service life. PACKING DIMENSIO(mm) :320X190X90.