Festool vac hoses and many like hoses tend to have a lot of rings/bumps along the length of the hose. The hose gets caught up on sharp edges, non rounded, very easily. Always problematic when dragging the hose over the edge of a project or work surface.
The fix works really well. With first use I never paid attention to the hose as it caught on nothing.
Festool solution.
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My solution, credit goes to numerous YouTubers that have done this.
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A roll of 3m linerless rubber splicing tape works to hold the ends in place. And you need to heat the ends of the sleeve, after cutting, to prevent fraying. I use an old soldering iron.