"No Hex Key?:"$ o9 }/ O4 q7 m: e4 I8 ~
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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. E( G+ u: g5 u. k3 I. D