RIFLE features a different constant taper per inch for each shaft in the set resulting in more energy transfer to the ball. The ball gets up faster and flattens out for a penetrating trajectory. Flighted technology features a change in kick point within each shaft throughout the set. Long irons provide a lower kick point for higher ball flight and easier launch while the short irons have a higher kick point for a lower trajectory and greater control. Fits 0.355 taper tip irons.