Up Charge Shaft 
Up Charge Shaft 
Up Charge Shaft 
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The JPX921 Hot Metal irons pair Mizuno's fastest ever ball speeds with a piercingly straight ball-flight and controllable landing angles.
The 3rd generation of Mizuno irons to utilize the resilience of Chromoly - the JPX921 has the most complex face geometry to date for additional energy from the clubface. Choose the more Pro version for a more compact profile with reduced offset.
The introduction of Chromoly was the breakthrough Mizuno needed to take a step up in ball speed. We learn more about the potential of Chromoly with each generation and push it further each time.
Extreme perimeter weighting with toe bias for stability from off centre strikes.
A re-engineered COR-TECH face is now 0.2mm thinner across the center point.
A new variable thickness sole design. Resulting in greater face flex and ball speeds.
| Club # | Loft ° | Lie Angle | Offset (inch) | Length (inch) |
| 4 | 19 | 60 | 0.224 | 38.5 |
| 5 | 22 | 60.5 | 0.213 | 38 |
| 6 | 25 | 61 | 0.201 | 37.5 |
| 7 | 29 | 61.5 | 0.189 | 37 |
| 8 | 34 | 62 | 0.173 | 36.5 |
| 9 | 39 | 62.5 | 0.154 | 36 |
| PW | 44 | 63 | 0.15 | 35.5 |
Dexterity:
RH and LH
| Club # | Loft ° | Lie Angle | Offset (inch) | Length (inch) |
| 4 | 19 | 60 | 0.15 | 38.5 |
| 5 | 22 | 60.5 | 0.142 | 38 |
| 6 | 25 | 61 | 0.134 | 37.5 |
| 7 | 29 | 61.5 | 0.126 | 37 |
| 8 | 34 | 62 | 0.118 | 36.5 |
| 9 | 39 | 62.5 | 0.11 | 36 |
| PW | 44 | 63 | 0.102 | 35.5 |
Dexterity:
RH Only
| Club # | Loft ° | Lie Angle | Offset (inch) | Length (inch) |
| GW | 49 | 63 | 0.134 | 35.25 |
| SW | 54 | 63 | 0.138 | 35.25 |
| LW | 59 | 63 | 0.063 | 35.25 |
Dexterity: RH and LH
Loft/Lie Adjustments
