Widening the narrow end of a thimble eye?

[op1]

Is there a right or wrong way to open up a thimble (so that it will fit inside a round ring, for example)?

[SailingWebGuy]

Apply heat maybe? I don't know...just guessing. I would like to know the answer to that also.

[newhaul]

is the thimble already used on a splice of cable or rope if so the best way would be by using a marlin spike. if not then best to purchase correct thimble size and type before splicing eye be carefull with adding heat so as not to get the metal to hot.

[MacGyverRI]

Use 2 pairs of water pump pliers and twist the ends sideways from ea. other, NOT straight apart.

][ normally closed thimble from split end

] twist sideways (a vise might help)

..[ ignore periods, only for formatting.

Do the same trick w/ chain links and they close tight.

[op1]

Sounds like a plan...