The best trick I found to cutting braided wire is wrap it in masking tape, it wont melt like electrical tape. Also always wrap it 2 turns and no more.
Then the line can be cut with an angle grinder or drop saw. Wide bladed drop saws still cut fine if you don't mind losing that 3mm or so.
As for the fittings, peel back the masking tape gently and clamp the hose into a vice with the cut side facing up. This way you can tap the little metal taper onto the teflon tube with a hammer which gently slides it under the braiding.
Makes a very neat, leak free braided line and you haven't even come close to getting stabbed by frayed wire
I also find using some durable wire cutters to trim back any excess very useful, never cut more than 2 wires at a time.
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