Jeepers..... Creepers.....

memike said

I liked that one too, I think they need to design a brake system on one so you don't go rolling when you start pulling or pushing on a wrench

I bet someone could come up with something

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There is a universal brake system. It's that wrench that you can't find when under a car. The one that locks up the wheel when you try and roll to the side or out to search for the wrench. It's just like when you drop a bolt or nut and it rolls to the magnetic dead center of the vehicle, exactly out of easy reach.