In the interesting article on this site about making trekking poles the author discusses using aluminum poles and ferrules to create a multi section pole. Anyone know where to get the ferrules and what diameter aluminum sections one would use? Thanks.
Clarification: I'm talking about adjustable ferrules that let one tube slip inside the next.

Edited by sskings on 11/24/2010 11:00:36 MST.

Try googling and researching "how to make your own fly rod". I have seen ferrules mentioned.

For example:
http://clarksclassicflyrodforum.yuku.com/topic/29953

Edited by rambler on 11/25/2010 07:45:47 MST.

http://www.backcountryedge.com/leki-accessories.aspx
jdm

Simple directions to making poles. I have seen the poles he made in action. Strong and light!

http://caseyandemily.com/Backpack/2006/2006_10_Poles/Poles.htm