... just spin either of the tool's two rotating heads to find the right size. With no socket ... Just Took a New TurnThe Wrench features two rotating heads that easily adjust and click into place--just spin ... size you're looking for. For further convenience, the heads detent at 45 and 90 degrees, so the ReadyWrench ... six-point socket design that won't damage bolt heads.Size list(Metric):8mm,10mm,11mm,13mm,14mm, ...