Formula One jack.
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Fullsize image: https://s3-us-west-1.amazonaws.com/h...k_fullsize.jpg
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Previously:
https://www.homemadetools.net/forum/...960#post137592
https://www.homemadetools.net/forum/...790#post136946
https://www.homemadetools.net/forum/...379#post131384
https://www.homemadetools.net/forum/...775#post118888