Callaway Golf Quantum Max OS Iron Set Pre-Order Ship Date: 02/20/26

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Who’s It For

Golfers who want maximum forgiveness and confidence at address, with an oversized shape that delivers high launch, powerful speed, and consistent carry.

Modern 360° Undercut

The Modern 360° Undercut Cavity is designed to deliver faster ball speeds, higher launch, and more forgiveness across the face, thanks to its advanced two-piece design with extreme perimeter weighting and a fully exposed undercut for added flex where golfers need it most.

Progressive Tri-Sole Design

The Progressive Tri-Sole Design promotes cleaner, more consistent contact across the set, with a reengineered sole geometry that adapts from long irons to wedges for smooth turf interaction and efficient speed retention—even on heavy strikes

Next Generation Ai-Optimized Face Design

The Next Generation AI-Optimized Face delivers faster ball speeds 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, forged-like sensation in a high-speed game-improvement head.

Oversized, Confidence-Inspiring Shape

Quantum Max OS is built for higher launch and maximum forgiveness—all in an oversized shape that inspires confidence at address.

Specifications:

Club Loft Loft Lie Length Offset (mm)
4 19.0° 21.0° 60.375° 39.125" 6.35
5 22.0° 24.0° 61.00° 38.50" 5.89
6 25.0° 27.0° 61.625° 37.875" 5.41
7 29.0° 31.0° 62.25° 37.25" 4.80
8 33.0° 35.0° 62.875° 36.625" 4.19
9 37.0° 39.0° 63.50° 36.00" 3.56
PW 42.0° 44.0° 63.75° 35.75" 2.79
AW 47.0° 49.0° 64.00° 35.50" 2.21
GW 51.0° 53.0° 64.00° 35.50" 1.65
SW 55.0° 57.0° 64.00° 35.25" 1.12
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