The E Series iron-wood comes stock with the same super-light FUBUKI metalwood shafts by Mitsubishi Chemical that range from 55-grams to 60-grams depending on the flex. 

 

The extremely light FUBUKI shafts feature lower kick points and lower cycles per minute frequencies that promise to help players achieve maximum velocity and to fight the fade to produce a longer, straighter and a slightly drawn ball flight.

 

It is also available in a KBS MAX 80 steel shaft. The KBS MAX 80 is a lightweight low-kick point steel shaft that produces a high trajectory for longer distance shots.