I still have a pair of these pliers from service in the RAF many years ago – They used to come in different sizes for different sizes of rubber tube. The rubber tubes were known as Ellerman sleeves, and the pliers were used as Ian describes, after lubricating the sleeves with a glycerin based oil – I also still have some of the oil – I don’t know if Ellerman is still in business, I’m afraid.
Just googled it – the name should be spelt Hellermann, and they do seem to be still in business – at least Google threw up packs of Hellermann sleeves for sale.
Edited By wotsit on 06/10/2011 11:03:58