The Callaway Quantum Max Irons are a great option for a golfer looking for forgiving performance across the face. With powerful speed and consistent carry this can be a club any player can be confident with. Learn more about the technology below. Modern 360° Undercut This caivty is a two-piece design with extreme perimeter weighting and a fully exposed undercut for added flex. This helps produce faster ball speeds, higher launch, and more forgiveness across the entire face. Progressive Tri-Sole Design The Progressive Tri-Sole Design promotes cleaner, more consistent contact across the set. This helps with smooth turf interaction and efficient speed retention, even on heavy strikes. Next Generation Ai-Optimized Face Design This clubface delivers faster ball speed and more consistent launch, spin, and dispersion by intelligently shaping the face to match real-world impact patterns and expand the sweet spot. Urethane Microspheres Urethane Microspheres enhance sound and feel at impact by absorbing unwanted vibration, delivering a softer sound. Refined, Forgiving Shape These irons have a refined, confidence-inspiring shape with forgiving performance across the face, delivering speed, consistency, and control. Shaft KBS Max 90 is mid-high launching. Grip Golf Pride Tour Velvet Standard (with Callaway logo) Customization Length: standard (can be made shorter or longer) Lie Angle: standard (can be adjusted) Club Specifications Club Loft Lie Angle Length (Std.) 5-Iron 22° 61.00° 38.50" 6-Iron 25° 61.625° 37.875" 7-Iron 29° 62.25° 37.250" 8-Iron 33° 62.875° 36.625" 9-Iron 37° 63.50° 36.00" PW 42° 63.75° 35.75"