The spec' states " aircraft grade aluminiun " and why would anyone be concerned about the tube ad head being bonded with adhesive, that's the way golf club heads are attached to shafts, instead of the old method of rivetting, which eventually broke down...............this has been the case for 30 years and Ican assure you, it's pretty easy to detach a rivetted head, but extremely difficult to remove a bonded one.
Yes, another part of my past working life. As a golf pro, part of the job is repairing clubs.
rob
Incidentally, for portable owners, there is a 1 1/2 " Evolution wand for nearly half the cost of the 2".