Stronger players looking to go just a little bit lighter than the typical steel shafted irons choose the SteelFiber i110, so they can pick up some yardage while maintaining a low penetrating ball flight and not change the overall feel they are accustomed to from playing steel shafts. Even the strong player can still take advantage of the reduced vibrations of a composite shaft resulting in fewer injuries and less fatigue during the round.
Now, with the SteelFiber i110, a graphite shaft can provide the tight dispersion a stronger golfer desires with the benefits of graphite. Aerotech SteelFiber iron shafts have been put in play by many PGA Tour Pros, including Brandt Snedeker, Matt Kuchar, and others (the list grows with each passing tournament). This is a .355 taper tip shaft.
These shafts are butt trim only.
Aerotech SteelFiber i110 Taper Tip Iron Trim Chart: