"No Hex Key?:"; U$ J6 t0 E, U$ |- T7 B3 u1 ^
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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. 5 Y' J7 X0 t* w9 z- d$ s; P6 _ 1 t# r3 l: R$ F4 w% \( I g( p