Never before used in golf.
Made by a single foundry in Pittsburgh, ATI 425 was initially developed for ballistic armour applications and has since been used in many aerospace and commercial aircraft solutions, including jet engines and NASA’s Phoenix Mars Lander.
And for the first time ever, it's delivering superior strength, elasticity and durability in golf equipment - as seen in the face construction of the new TSi2 and TSi3 drivers. #ItsATitleist