Shrinker/stretcher Stretched and shrunken metal’s the cause of all dents and damage — getting them out’s where the skill lies. But you can make them work to your advantage — on right-angle sections, shrink/stretch one side and it’ll curve either way, allowing you to make for example a wheel arch lip. But deliberately shrinking/stretching is hard unless you have a purpose made tool. Using a set of jaws for each, the shapes you can create are unreal!
Model shown: Shrinker/Stretcher Combo How much: £250 From: Frost
Hole punch set Plug welding is great