Hello. I am not sure of his main guitar, but I know that most musicians play several instruments. I was personally involved in giving Mr. Keaggy a Patrick Eggle guitar (http://www.patrickeggleguitars.com/) for his use. He seemed honored and happy about this gift. I am unsure if he uses it often (or at all).
a Phillips gutar
Old faithfull
I dk!?!?!!?!?!?!?!?!?!?!!?!?!?!?!?!?!?!!?!?!?!?
Martins.
Guild
Taylor
Larrivee Acoustic
Olson
Gibson
Fender Stratocaster
Gretsch White falcon
A Guild Starfire, various Alembics and Modulus Quantum 6