Hi,<br/><br/>I am trying to figure out if there are any noticiable differences among them.<br/><br/><b>Ex#1:</b> Professional, attentive <b>service is always to hand</b><br/><br/><b>"to hand" is only used in Br Eng? ( Y? N?)</b><br/><br/><b>Ex#2:</b> An efficient concierge <b>service is always on hand</b> to attend to your needs<br/><br/><b>Ex#3</b>: ...round-the clock butler <b>service is always at hand</b><br/><br/>Do I understand correctly that "on hand" and "at hand"are 100% interchangeable in AmEng? (Y? N?)<br/><br/>thanks in advance<br/><br/>muscovite