On a boring morning I made 3 titanium leaders.  In additional to the tools shown I used a plastic jawed vise to hold the tubing while I used the file to cut it.  The tubing is available at HobbyKing and Ebay and the wire is available on ebay search for Knottable titanium. The tubing is 1/16 th brass.  I would explain how to make them but with this group I don’t think that is necessary.
20200418_092649 by magicpaddler, on Flickr
				
			
20200418_092649 by magicpaddler, on Flickr