The Eastwood metal Shrinker Stretcher lets you easily fabricate gentle radius bends and contours in steel aluminum stainless or copper. Compound 45:1 leverage allows effortless forming without making relief cuts heating or hammer-forming. Shrinker/Stretcher Metal-Shaping Combo reproduces wheel wells dog legs trunk corners…almost any metal fabrication requiring a combination curve and angle. Use the shrinker to contract metal for inside curves; use the stretcher to expand metal for outside curves. The hand-operated metal shrinker stretcher press multiplies your pressure by a factor of 45 creating leverage to work on up to 18-gauge mild steel 20-gauge stainless and 16-gauge aluminum. Clamps in your vice or mounts on your bench or pedestal stand. Contents 2 jaws shrinker/stretcher 2 housings 2 handles and instructions. Comes assembled and pre-drilled for bench mounting. Age Group: adult.