Best practice, even for the original steel versions.
Personal choice I guess, if you like the idea of owning a four wheel drive computer :rolleyes:
Had occasion to use one under my 90, bolt head so corroded couldnt even get mole grips to stay on, 1st go with one of these and out it came. Suprised it worked so well, just bought the extender set to go up to 19mm.
Just go round the roundabout, then it's all left turn until you exit:rolleyes:
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