Rotate the red or black jack to move the piercing needle forward into the insulation.
Rotating jack will not twist test lead while the needle is being screwed into wire.
* Can handle wires from 0.030" diameter through 0.180" diameter insulation. * Overall length = 4-inches * High visibility bright yellow body. * Spring loaded slider holds wi...
Reviews
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Good product
They are a good piercing probe for while Phil's is out of stock