A vise can do more

[Frank S]

TM 51 this tool is yet another fine example of the often times simplistic approach to HMT's yielding un-imagined use results prior to their addition to ones tool inventory.
I have used similar shaped pieces with a single protruding tang extending a ways out from the flat face which would engage a dibbit or indention to hold extremely odd shaped parts when using my 4 jaw. Many times no matter which way you try to position the part you just cannot get that 4th jaw to engage in a secure position these little cord segments can be used where the grip surface is just too accute to successfully clamp the part the tang will provide a bi-angular clamping force