Original iron specifications
Mizuno Hot Metal Pro irons (JPX925)
Mizuno publishes the same loft, lie and length sequence for JPX925 Hot Metal and Pro through GW, with different head dimensions.
- 7-iron loft
- 28°
- Pitching wedge loft
- 42°
- 7-iron length
- 37.25 in

Loft, lie & length chart
US JPX925 Hot Metal Pro standard specifications in inches.
| Club | Loft (°) | Lie (°) | Length (in) |
|---|---|---|---|
| 4 | 19 | 60.5 | 38.75 |
| 5 | 22 | 61 | 38.25 |
| 6 | 25 | 61.5 | 37.75 |
| 7 | 28 | 62 | 37.25 |
| 8 | 32.5 | 62.5 | 36.75 |
| 9 | 37 | 63 | 36.25 |
| PW | 42 | 63.5 | 35.75 |
| GW | 48 | 64 | 35.5 |
Source: Mizuno JPX925 Hot Metal Pro specification. Checked 2026-09-28.
How to identify this generation
- The Pro suffix matters: check the head shape and cavity against Mizuno's side-by-side visuals.
- A matching loft chart cannot identify Pro versus standard Hot Metal.
What to notice in the specifications
- The Pro 7-iron is 28° and 37.25 inches in the standard row.
- The manufacturer lists the Pro range through GW, while standard Hot Metal adds a SW.
- Mizuno's comparison gives the Pro a smaller head length; identical angles do not mean identical construction.
Checking a club you own? These are the maker's published figures for an original build, not measurements of your club, and a source date is not the year it was made. Bending, reshafting or a hosel adjustment changes loft, lie and length, so identify the head by its own markings and have a fitter measure it when its history is unclear.
Read our loft guide for a worked example of comparing the numbers, and our used iron checklist before relying on a seller's description.



