Mizuno JPX-900 Forged vs Mizuno JPX-900 Hot Metal
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | JPX-900 Forged loft | JPX-900 Hot Metal loft | JPX-900 Forged lie | JPX-900 Hot Metal lie | JPX-900 Forged length | JPX-900 Hot Metal length |
|---|---|---|---|---|---|---|
| 4 | 21 | 21 | 60 | 60 | 38.25 | 38.25 |
| 5 | 24 | 24 | 60.5 | 60.5 | 37.75 | 37.75 |
| 6 | 27 | 27 | 61 | 61 | 37.25 | 37.25 |
| 7 | 31 | 31 | 61.5 | 61.5 | 36.75 | 36.75 |
| 8 | 35 | 35 | 62 | 62 | 36.25 | 36.25 |
| 9 | 40 | 40 | 62.5 | 62.5 | 35.75 | 35.75 |
| PW | 45 | 45 | 63 | 63 | 35.5 | 35.5 |
| GW | 50 | 50 | 63 | 63 | 35.25 | 35.25 |
| SW | — | 55 | — | 63 | — | 35.25 |
| LW | — | 60 | — | 63 | — | 35.25 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- JPX-900 Forged
- JPX-900 Hot Metal
What the differences mean
Every club the two sets share has exactly the same loft, starting with a 31° 7-iron. On paper there is no distance or trajectory difference: with the same swing, a 7-iron from either set should launch and carry about the same. The real differences are in how the heads are built, how they look at address and how they feel at impact, none of which a spec table can show. Lie angles and lengths match as well, so any fitting adjustment made to one set would carry straight over to the other.
The sets are built differently: the JPX-900 Forged runs 4-iron to GW (8 clubs), the JPX-900 Hot Metal 4-iron to LW (10 clubs).
The JPX-900 Forged is a players distance iron and the JPX-900 Hot Metal a game improvement iron, so they sit one step apart on the forgiveness scale. The JPX-900 Hot Metal is the more forgiving design, with a wider sole, more offset and more perimeter weighting for roughly 10 to 25 handicaps. The JPX-900 Forged trades some of that for a more compact head, thinner topline and more control over flight and shape, which suits roughly 5 to 15 handicaps who want extra distance from a compact head.
The JPX-900 Forged is listed as forged and the JPX-900 Hot Metal as investment cast. Forging, as in the JPX-900 Forged, is generally credited with a softer feel; casting, as in the JPX-900 Hot Metal, allows more complex cavity and weighting shapes, which is why it dominates forgiving irons.
Both sets were introduced in 2016, so this is a choice between two models from the same lineup rather than an upgrade: Mizuno designed them to sit side by side for different players.
Which should you choose?
The JPX-900 Forged and JPX-900 Hot Metal share the same lofts on every club on file, so the difference is in head construction, feel and forgiveness rather than trajectory.
Both charts are reproduced in full on their own pages: Mizuno JPX-900 Forged specs and Mizuno JPX-900 Hot Metal specs.
Frequently asked questions
Is the Mizuno JPX-900 Forged stronger lofted than the JPX-900 Hot Metal?
No. Both have a 31° 7-iron and the same loft on every club they share, so neither is stronger lofted. The difference is in construction and feel.
What is the loft difference between the Mizuno JPX-900 Forged and JPX-900 Hot Metal?
There is none. Every club both sets include has the same loft, including the 31° 7-iron.
Which is better for higher handicap golfers, the Mizuno JPX-900 Forged or the JPX-900 Hot Metal?
The JPX-900 Hot Metal. As a game improvement iron it is the more forgiving design, suited to roughly 10 to 25 handicaps. The Mizuno JPX-900 Forged is a players distance iron, better suited to roughly 5 to 15 handicaps who want extra distance from a compact head.
Do the Mizuno JPX-900 Forged and JPX-900 Hot Metal have the same lie and length?
At the 7-iron, yes: both are 61.5° lie and 36.75 inches long.
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