Forged 1020 carbon steel - Allows for exceptional touch and feel around the greens
Mack Daddy Grooves (MD) - On selected 56- through 64-degree models, the aggressively-sized grooves are designed at the maximum depth and width for tour-level spin, trajectory and distance control
C Grind Sole (MD-C) - Allows for maximum versatility in shot-making on a variety of turf conditions around the greens