
OUR FASTEST FLYING, FAST STOPPING IRONS.


TECHNICAL DETAILS
- Harmonic Impact Technology: Fine tuned head geometry delivers ideal impact feel and feedback
- Seamless Cup Face: Thinned areas revolving 360 degrees around the perimeter increase rebound area for maximum ball speed across the entire face
- CORTECH Design: Optimized face thickness distribution to maximize COR AREA
- Variable Sole Thickness: Increase overall face flex area for add CORAREA
- Acoustic Sound Ribs: Precisely dial in specific vibration patterns for a solid, explosive impact sound
- Beveled Trailing Edge: Aggressive relief on the trailing edge for reduced turf drag
- 4335 Nickel Chromoly: 4335 Nickel Chromoly is 20% stronger, allowing for an 8% reduction in face thickness, resulting in higher ball speeds.
- V-Chassis: Engineered via Mizuno’s Harmonic Impact Technology, the V-Chassis allows the top line to be thinner without sacrificing feel and sound.
- White Satin Brush Finish: A modern elegant, yet durable non-glare finish

PLAYERS SPEED CAVITY
Suitable for:
LOW to MID HCP
Construction:
ONE PIECE NICKEL CHROMOLY CAVITY
Head Length:
80.7MM
Introducing Nickel Chromoly
A new material with so much additional ball speed, our engineers switched their focus to feel and stopping power.
35% stronger than our original Hot Metal material, 4335 Nickel Chromoly enables a high-energy 8% thinner clubface.
Combined with Mizuno’s vibration controlling V-Chassis and deep CG design, the JPX923 Hot Metal irons are as enjoyable and controllable as they are long.


FASTER NICKEL CHROMOLY
New 4335 Nickel Chromoly is 35% stronger than our original Chromoly, for an 8% thinner, high ball speed clubface.

V-CHASSIS FOR MORE SOLID FEEL
Mizuno’s new V-Chassis delivers a more solid satisfying vibration pattern, even though the clubface is 8% thinner.
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Increased Stopping Power
Seamless cup face construction delivers the deep centre of gravity needed for a high launch and controllable landing angle.
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CONSISTENT BALL SPEEDS ACROSS THE FACE
The thinnest part of the sole is extended 18% wider, creating a wider high-energy area.
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WHITE-SATIN BRUSH
Non-reflective, Chrome plated finish to reduce bright light glare.
175,000 real golf swings recorded via Mizuno’s Swing DNA system every year highlighted the need for variable launch options.
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JPX923 HOT METAL PRO SPECIFICATION
| Club # | Loft ° | Lie Angle | Offset (inch) | Length (inch) |
| 4 | 19 | 60 | 0.155 | 38.5 |
| 5 | 22 | 60.5 | 0.147 | 38 |
| 6 | 25 | 61 | 0.139 | 37.5 |
| 7 | 28.5 | 61.5 | 0.131 | 37 |
| 8 | 33 | 62 | 0.122 | 36.5 |
| 9 | 37.5 | 62.5 | 0.114 | 36 |
| PW | 42.5 | 63 | 0.106 | 35.5 |
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UST Mamiya Recoil 95 Graphite
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| Flex | Weight | Trajectory |
|---|---|---|
| R | 95g | Mid |
| S | 95g | Mid |

























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