CD 158.9 Screw-top wrench in position on glass

By Mark Lauckner; posted March 8, 2010

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Here is the wrench I made in plaster. I made the handles short enough to fit between other pins on a cross-arm. If this insulator design was intended to be used this way, then the nut would hold the wrench in position, while the insulator cut it's own threads into a threadless pin.