Exactly reproduce such components as wheel-well flanges, compound dog legs, even trunk corners. Reproduce almost anything requiring the combination of a curve and an angle. Both tools can produce curves as tight as 3in. radius. The hand operated press multiplies your pressure by a leverage factor of 45, giving the hardened steel jaws tremendous force. Form mild steel up to 18 gauge, stainless steel up to 20 gauge, aluminum up to 16 gauge. Each tool comes assembled with drilled & taped housings for easy mounting to your bench. The Set includes a Shrinker Jaw, a Stretcher Jaw and two housings.