But in the DIY shops and I only find isolated ferrules with coloured plastic tubes to be put on top of the isolated part of the wire. Aesthetically, I prefer the "professional" option depicted above, which is also more suitable for confined space.
- Can I buy such ferrules and crimp them myself with a normal crimper tool?
- Does the depicted implementation have any significant disadvantages, making the isolated ferrules so popular?
Update: FWIW, so terminated wires are typical if you buy a wire with a mains plug in Europe, here is an example of a German cable.
Update 2: I realized that the picture may be not clear enough. The main "feature" of these ferrules is that originally they seem to be a flat piece of metal, rather than a tube. This stripe is wrapped around the wire. Therefore there is a seam. What I like about such crimp is that it's almost as thin as the wire, while a deformed tubular ferrule is always thicker, since otherwise it won't fit on the wire before crimping.