Stupid Bolts

[6 Pack JTD]

What on earth am I supposed to use to undo the crank pulley bolts on my 54 Multi JTD? They look a bit like Torx but are castellated instead of pointy. would using a torx in them chew them up?

 

[6 Pack JTD]

Thats now sorted thanks to the top guys at Stoneacre Fiat in Lincoln who have lant me the tools to do the job for the cost of a few cans of beer!

 

[Davren]

For anyone else looking at this thread, they are called "Ribe" bits.

 

[6 Pack JTD]

Cheers, forgot to mention the name of the things.