diabolik, I own 3 different types of BCB saw. One is the standard one that most people talk about with the crimps, swivels and rings. The second is one with just the crimps and larger loops. These come in the BCB survival kits. My newest one is one where the ends of the saw have been folded over, twisted and melted to form a smooth, small, compact loop. it then has the swivels and split rings like the first type mentioned. This is my favourite so far as I was able to easily thread it through a length of aquarium tubing like chris mentioned. Would you be able to shed any light on the reasons for the different types of saw and the names of each?
Thanks