[NTG-context] \hbox to ... equivalent in ConTeXt (\framed)

Hi list. Is there an interface for \hbox to <size> via framed? I think it's not the ConTeXt spirit to do something like \framed[offset=0cm]{\hbox to 10cm{Uno dos tres}} where spacing is stretched so all the available space is filled, so I want to know about a better way. Thank you beforehand. Cordially, Jairo