Mizuno JPX 923 Hot Metal Pro Golf Irons


Players Speed Cavity

Meet Nickel Chromoly: a revolutionary material that delivers incredible ball speed. Mizuno engineers prioritised feel and stopping power, utilizing the 35% strength increase of 4335 Nickel Chromoly to create an 8% thinner clubface. With the added benefits of Mizuno's V-Chassis and deep CG design, the JPX923 Hot Metal irons offer unbeatable control and enjoyment for skilled players looking to maximize ball speed.

Faster Nickel Chromoly

Experience the power of 35% increased strength with our New 4335 Nickel Chromoly, featuring an 8% thinner clubface for explosive ball speed. Enhance your game with this groundbreaking technology.

V-Chasis For More Solid Feel

Experience a more solid and satisfying vibration pattern with Mizuno's new V-Chassis, as the clubface is now 8% thinner.

Increased Stopping Power

Experience the powerful impact of the JPX 923 Hot Metal Pro Golf Irons with their seamless cup face construction. This innovative design provides the precise centre of gravity for a high launch and controlled landing angle, giving you the advantage on the course.

Consistent Ball Speeds Across the Face

With an extended sole that is 18% wider, a larger high-energy area is formed that increases the power and performance of your shots.

White-Satin Brush

Experience the sleek, non-reflective, chrome plated finish that minimises bright light glare for a clearer, more focused game.


Club Loft Lie Length
4 19° 60° 38.5"
5 22° 60.5° 38"
6 25° 61° 37.5"
7 28.5° 61.5° 37"
8 33° 62° 36.5"
9 37.5° 62.5° 36"
PW 42.5° 63° 35.5"
Dexterity: Right Hand
Set: 5-PW
Shaft: KBS $ Taper Lite - Regular
Dexterity: Right Hand
Set: 5-PW
Shaft: KBS $ Taper Lite - Regular

Product information


What happens if I can’t select the combination of head, shaft & grip I want?

Email us on hi@ninebyninegolf.com or call 020 3995 5638 we would be more than happy to discuss and prepare a custom quote.

I am purchasing from outside of the UK, what happens with TAX / Customs duty?

All orders show and charge TAX / Duties at checkout so there will be no additional payment required to the courier. Goods will be delivered duties paid (DDP)

Do you offer advice prior to purchase if I am unsure which product to choose?

We understand and recommend trying / having a fitting prior to any purchase but should this not be possible our team will be more than happy to help you through any purchase. Either via email or on the phone.

I paid for Express shipping on a custom order, why hasn't it shipped next day? 

Express shipping is the fastest possible shipping service, unfortunately it is not a way of getting your custom order built faster.

What if I can’t find an option I want on a drop-down menu?

If you can’t find a grip or shaft that you would like to order then please do reach out to us or place an order and leave a note on the order. One of our team will be happy to help you through the process. 

Nine by Nine Golf

Nine by Nine Golf is a supplier of high quality golf equipment. Golf is about performance and the brands we sell will help you achieve your highest performance on the course.

The Nine by Nine team has a long history with the game of golf as well as a deep knowledge and understanding of the technology and products on offer.

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