Expressions (phrases, clauses, etc.), Ichidan verb
to try to have it both ways; to play a double game; to have two strings to one's bow
Idiomatic expressionsee 天秤にかける
両天びんにかけようたってそうはいきませんよ。You can't have it both ways.
Also written 両天秤に掛ける【りょうてんびんにかける】