"No Hex Key?:") J6 v, O9 l/ @" u! R! c; V
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1/2 3/8 1/4 inch rod couplings can be used in a pinch if you need a hex key or allen wrench. insert rod coupling into hex opening in lug set screw and turn with wrench. - i: c6 C4 a; T* N" k; d A) d4 K8 J) G2 }