Mizuno Iron Specs Chart: JPX 925 & Mizuno Pro Lofts and Lies

Mizuno iron specs chart: 7-iron lofts from 28 degrees (JPX 925 Hot Metal) to 34 degrees (Mizuno Pro S-1)

Golf Club Fitting

September 30, 2026

The quick answer: Mizuno's current irons come in two families. JPX 925 (Hot Metal, Hot Metal Pro, Hot Metal HL, Forged, Forged Black and the Fli-Hi long irons) and Mizuno Pro (S-1, S-3, S-4, M-13, M-15 and the Fli-Hi). Their 7-irons range from 28° (JPX925 Hot Metal, JPX925 Hot Metal Pro) to 34° (Mizuno Pro S-1, Mizuno Pro S-3, Mizuno Pro S-4). The Mizuno Pro 243 was replaced by the M-13, the Pro 245 by the M-15, and the Pro 241 by the S-1. Full loft, lie, offset and length tables for every model are below.

Mizuno 7-Iron Loft Comparison

The quickest way to compare Mizuno irons is the 7-iron and pitching wedge, from strongest loft to weakest:

Iron	7-iron loft	PW loft	7-iron lie	7-iron length
JPX925 Hot Metal	28°	42°	62°	37.25"
JPX925 Hot Metal Pro	28°	42°	62°	37.25"
Mizuno Pro M-15	29°	43°	62°	37.25"
JPX925 Forged	30°	43°	62°	37.25"
JPX925 Forged Black	30°	43°	62°	37.25"
JPX925 Hot Metal HL	31°	45°	62°	37.25"
Mizuno Pro M-13	32°	44°	62°	37.25"
Mizuno Pro S-1	34°	46°	62°	37.25"
Mizuno Pro S-3	34°	46°	62°	37.25"
Mizuno Pro S-4	34°	46°	62°	37.25"

Every current Mizuno 7-iron has the same 62° lie and the same 37.25" length; the loft is what changes between models. The JPX 925 Hot Metal's 7-iron is 2° stronger than the JPX 925 Forged's (28° vs 30°).

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Mizuno JPX 925 Iron Specs

JPX925 Hot Metal

In Mizuno's words: “The new Hot Metal iron family introduces a multi-material design, strategically incorporating tungsten into our Nickel Chromoly designs, enhancing distance with impressive height and spin.”

Club	Loft	Lie	Offset	Length
4	19°	60.5°	0.224"	38.75"
5	22°	61°	0.213"	38.25"
6	25°	61.5°	0.201"	37.75"
7	28°	62°	0.189"	37.25"
8	32.5°	62.5°	0.173"	36.75"
9	37°	63°	0.154"	36.25"
PW	42°	63.5°	0.13"	35.75"
GW	48°	64°	0.106"	35.5"
SW	54°	64°	0.083"	35.25"

JPX925 Hot Metal Pro

Club	Loft	Lie	Offset	Length
4	19°	60.5°	0.15"	38.75"
5	22°	61°	0.142"	38.25"
6	25°	61.5°	0.134"	37.75"
7	28°	62°	0.126"	37.25"
8	32.5°	62.5°	0.118"	36.75"
9	37°	63°	0.11"	36.25"
PW	42°	63.5°	0.102"	35.75"
GW	48°	64°	0.094"	35.5"

JPX925 Hot Metal HL

Club	Loft	Lie	Offset	Length
4	22°	60.5°	0.26"	38.75"
5	25°	61°	0.248"	38.25"
6	28°	61.5°	0.236"	37.75"
7	31°	62°	0.224"	37.25"
8	35°	62.5°	0.197"	36.75"
9	40°	63°	0.169"	36.25"
PW	45°	63.5°	0.142"	35.75"
GW	50°	64°	0.122"	35.5"
SW	55°	64°	0.102"	35.25"

JPX925 Forged

Club	Loft	Lie	Offset	Length
4	21°	60.5°	0.15"	38.75"
5	24°	61°	0.142"	38.25"
6	27°	61.5°	0.134"	37.75"
7	30°	62°	0.126"	37.25"
8	34°	62.5°	0.118"	36.75"
9	38°	63°	0.11"	36.25"
PW	43°	63.5°	0.102"	35.75"
GW	48°	64°	0.091"	35.5"

JPX925 Forged Black

Club	Loft	Lie	Offset	Length
4	21°	60.5°	0.15"	38.75"
5	24°	61°	0.142"	38.25"
6	27°	61.5°	0.134"	37.75"
7	30°	62°	0.126"	37.25"
8	34°	62.5°	0.118"	36.75"
9	38°	63°	0.11"	36.25"
PW	43°	63.5°	0.102"	35.75"
GW	48°	64°	0.091"	35.5"

JPX925 Fli-Hi

In Mizuno's words: “The JPX925 Fli-Hi is the perfect addition to the top end of any set for the player looking to maximize height and control in stronger lofts.”

Club	Loft	Lie	Length
4	19°	59.75°	40"
5	22°	60.5°	39.25"
6	25°	61.25°	38.5"
7	28°	62°	37.75"

Mizuno Pro Iron Specs

Mizuno Pro S-1

In Mizuno's words: “The Mizuno Pro S-1 irons are pure muscle backs, designed for players who demand ultimate precision and workability.”

Club	Loft	Lie	Offset	Length
4	24°	60.5°	0.098"	38.75"
5	27°	61°	0.094"	38.25"
6	30°	61.5°	0.091"	37.75"
7	34°	62°	0.087"	37.25"
8	38°	62.5°	0.083"	36.75"
9	42°	63°	0.079"	36.25"
PW	46°	63.5°	0.075"	35.75"

Mizuno Pro S-3

In Mizuno's words: “The Mizuno Pro S-3 irons represent the pinnacle of refined craftsmanship and elite performance, embodying the heritage of Mizuno’s forging expertise while catering to the demands of today’s golfers.”

Club	Loft	Lie	Offset	Length
3	21°	60°	0.13"	39.25"
4	24°	60.5°	0.126"	38.75"
5	27°	61°	0.122"	38.25"
6	30°	61.5°	0.118"	37.75"
7	34°	62°	0.114"	37.25"
8	38°	62.5°	0.11"	36.75"
9	42°	63°	0.106"	36.25"
PW	46°	63.5°	0.102"	35.75"

Mizuno Pro S-4

In Mizuno's words: “The Mizuno Pro S-4 has been engineered for accomplished golfers seeking the unmistakable feel of a forged iron with greater forgiveness and confidence throughout the set.”

Club	Loft	Lie	Offset	Length
3	21°	60°	0.173"	39.25"
4	24°	60.5°	0.165"	38.75"
5	27°	61°	0.157"	38.25"
6	30°	61.5°	0.15"	37.75"
7	34°	62°	0.138"	37.25"
8	38°	62.5°	0.126"	36.75"
9	42°	63°	0.114"	36.25"
PW	46°	63.5°	0.102"	35.75"

Mizuno Pro M-13

Club	Loft	Lie	Length	Bounce
4	22°	60.5°	38.75"	2°
5	25°	61°	38.25"	3°
6	28°	61.5°	37.75"	4°
7	32°	62°	37.25"	5°
8	36°	62.5°	36.75"	6°
9	40°	63°	36.25"	7°
PW	44°	63.5°	35.75"	8°
GW	48°	64°	35.5"	9°

Mizuno Pro M-15

Club	Loft	Lie	Length	Bounce
4	20°	60.5°	38.75"	2°
5	23°	61°	38.25"	3°
6	26°	61.5°	37.75"	4°
7	29°	62°	37.25"	5°
8	33°	62.5°	36.75"	6°
9	38°	63°	36.25"	7°
PW	43°	63.5°	35.75"	8°
GW	48°	64°	35.5"	9°

Mizuno Pro Fli-Hi

In Mizuno's words: “The Mizuno Pro Fli-Hi has become a fixture with the majority of Mizuno’s tour players.”

Club	Loft	Lie	Offset	Length	Bounce
2	16.5°	59.5°	0.177"	40"	0°
3	19°	60°	0.173"	39.5"	0°
4	21.5°	60.5°	0.169"	39"	1°

Mizuno publishes bounce rather than offset for the M-13 and M-15, so their tables show bounce.

Mizuno Pro 245 Specs

The Pro 245 has been replaced by the M-15, but it's still one of the most-searched Mizuno irons. These are Mizuno's own published specs, from its Pro 245 page as archived in August 2025:

Club	Loft	Lie	Offset	Length	Bounce
2	16.5°	59°	0.15"	39.75"	1°
3	19°	59.5°	0.142"	39.25"	1°
4	21.5°	60°	0.138"	38.75"	2°
5	24°	60.5°	0.134"	38.25"	3°
6	27°	61°	0.13"	37.75"	4°
7	30°	61.5°	0.122"	37.25"	5°
8	34°	62°	0.114"	36.75"	6°
9	38°	62.5°	0.106"	36.25"	7°
PW	43°	63°	0.098"	35.75"	8°
GW	48°	63°	0.094"	35.5"	9°

What Replaced the Mizuno Pro 241, 243 and 245?

Previous model	Replaced by	In Mizuno's words
Mizuno Pro 243	Mizuno Pro M-13	“The M-13, successor to the Mizuno Pro 243, combines traditional head shaping with modern construction to create a set that offers more speed through the long irons and greater precision in the scoring clubs.”
Mizuno Pro 245	Mizuno Pro M-15	“The M-15, successor to the Mizuno Pro 245, offers a fully integrated progression of performance from long iron to wedge.”
Mizuno Pro 241	Mizuno Pro S-1	Mizuno’s Pro 241 page now takes you to the S-1, which it describes as “pure muscle backs.”

Going from the Pro 245 to the M-15, the 7-iron moves from 30° to 29°. Mizuno no longer publishes the full Pro 241 and Pro 243 spec tables, so for those sets check the numbers stamped on your own clubs, or have a club fitter measure them.

Frequently asked questions

What is the loft of a Mizuno JPX 925 Hot Metal 7-iron?

28°, with a 62° lie and a 37.25" length, per Mizuno's spec table.

What replaced the Mizuno Pro 243?

The Mizuno Pro M-13. Mizuno calls it "the M-13, successor to the Mizuno Pro 243."

What replaced the Mizuno Pro 245?

The Mizuno Pro M-15. Mizuno calls it "the M-15, successor to the Mizuno Pro 245."

What is the loft of a Mizuno Pro 245 7-iron?

30°, from Mizuno's published Pro 245 specs. Its successor, the M-15, has a 29° 7-iron.

Are JPX 925 Forged lofts weaker than Hot Metal?

Yes. The JPX 925 Forged 7-iron is 30° and the Hot Metal 7-iron is 28°.

What is the lie angle of a Mizuno 7-iron?

62° on every current Mizuno iron set, from the JPX 925 Hot Metal to the Mizuno Pro S-1.

Sources: the spec tables on each Mizuno iron page, and Mizuno's Pro 245 page (archived August 2025), checked September 30, 2026.