Most of the de-latchers are either like a single fork shape,double fork or round.You could use a paperclip,just straighten one side an file flatish but not to thin.That is what we used to use at work when making looms and couldnt find or had broken a de-latching tool.If any are round the proper tool to use http://uk.rs-online.com/web/search/s...duct&R=0446204 <dont quote me on the size or try maplins.You may struggle with the one in the link its similar though.The easier one to use has a rod inside the tube and you push from the handle.File a bloody paper clip its cheaper lol.