Frödin FITS Tube Needle & Device.
This genius little tool consists of a original FITS tubing needle that take all four diameters of flexible FITS tubing. You can also take away the needle and fasten all kinds of metal tubes, simple and effective! It is made of hardened steel with a foot that fits all kinds of tying vises. This is the complete tubing device that let you tie it all.
– Hold all four sizes of FITS tubing & alu/brass tubes in a firm grip.