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Price
$164 per iron
Buy Now at golf galaxy

Callaway Quantum Max OS

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Price
$164 per iron
Buy Now at golf galaxy

Why We Like It

  • Callaway returns to its roots in this category with an oversize clubhead that has plenty of offset, a thicker topline, and weaker lofts to help golfers get the ball airborne.
  • For those needing even more help launching the ball, a version with 2-degree weaker lofts is available through custom order.
  • The 360-degree undercut cavity creates more springlike effect because of a cupface that extends toward the rear of the sole.
  • Higher-handicappers tend to have a forward press at address, leading to digging or fat shots at impact. Callaway addresses this with a tri-sole design in which the leading-edge chamfer sits higher off the ground to minimize fat shots.
  • A weight bar allows the center of gravity to remain low and forward without inhibiting flex on the sole flange, keeping speed up on shots hit low on the face.
  • Top 5 in Performance, high-handicaps
  • SPECS: 7-iron: 29 degrees; PW: 42 degrees

hot list score breakdown

Performance
5.0
50%*
Innovation
4.5
30%*
Look / Sound / Feel
4.5
20%*
how we test
An exhaustive review
Our editors conduct meetings with club engineers from manufacturers large and small.
A scientific method
A panel of scientists determines the clubs that raise new possibilities in design and theory.
Real players
Our editors review the input of 32 typical golfers to find the clubs that resonate the most.
Real results
Our ratings reflect the best scores in the Hot List criteria of Performance, Look/Sound/Feel and Innovation.

hot list testers feedback

Aesthetics
Plain
Elaborate
Acoustics
Quieter
Louder
Sensory
Softer
Firmer
Launch
Lower
Higher
Forgiveness
Least
Most
handicap
  • all
  • low
  • mid
  • high
COMMENT SUMMARY

Hot List testers noted a high, penetrating launch that lands soft and stops, delivering strong distance, forgiveness and tight dispersion. Low, rear weighting stabilizes the head; slight offset and thicker, supportive lines create a confidence-inspiring profile. Impact feel was widely praised — firm and satisfying (longer irons give a louder clap, shorter irons a muted click) — and the generous sweet spot produced consistent carry. One caveat: a few mis-hits tended to leak right.

Summaries generated from tester comments with the assistance of AI.
COMMENT SUMMARY
Summaries generated from tester comments with the assistance of AI.
COMMENT SUMMARY
Summaries generated from tester comments with the assistance of AI.
COMMENT SUMMARY
Summaries generated from tester comments with the assistance of AI.
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NO REVIEWS
There are no tester reviews here.
Range Results

We tracked 20,000 shots through player testing and then had them analyzed by our team of scientists. These graphics reflect the relative performance our players saw for each club in the category.

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A Skeptic’s Guide To New Golf Equipment

From the Manufacturer
Callaway Quantum Max OS

Quantum Max OS blends confidence with maximum forgiveness, powerful speed, and consistent carry — all in an oversized shape designed to help golfers hit it more solid across the face. 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. 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.

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