The Titleist 716 AP1 8 Piece Iron Set - Steel
The Titleist 716 AP1 Irons some of the longest and most forgiving irons to ever be created by Titleist. A large, thin unsupported face is created by an extreme 360 degree undercut cavity. This helps to increase launch and velocity which leads to more distance.
Increased speed and distance is promoted even more by high density tungsten that moves the center of gravity low. The same high density tungsten has also been moved to the perimeter to enhance moment of inertia for great forgiveness on off-center hits.