WHAT IT DOES: Although the hollow body is cast from 8620 carbon steel, the 4140 face is forged and as thin as 1.55 millimeters. Mass from the high-toe area has been removed to expand the unsupported face area for more flex, ball speed and forgiveness, creating a sweet spot that is 14 percent larger. Because the majority of iron impacts occur low on the face, the company’s hallmark speed pocket provides extra flex in that area. To assist feel, a low-density polyurethane foam is injected inside the clubhead. That not only produces a pleasing sensation at impact but saves weight that can be redistributed to help off-center hits.

WHY WE LIKE IT: There’s tons of tech in this iron, but it’s all neatly hidden from view, creating a clean look at address. The company advances its slot technology in a package that appeals to the better player—both in the bag and in their hands. The use of tungsten is cleverly done, too: It changes mass and position throughout the irons. In the 3-, 4- and 5-irons, 45 grams are used, and only 32 grams are allocated for the 6- and 7-irons. The reason is you need a lower center of gravity in the long irons to help create lift. Read more>>