JPX 921 Forged vs Hot Metal

Golf club selection is a crucial factor in determining the player’s success on the course.

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Mizuno, a renowned golf equipment manufacturer, offers two popular iron sets, Jpx 921 Forged and Hot Metal, both with their own unique features.

This article provides a comprehensive comparison between these two sets to help golfers make an informed decision.

Jpx 921 Forged Irons

Jpx 921 Forged irons are designed for experienced golfers looking for a soft feel, increased control, and workability.

Made of 1025E Pure Select Mild Carbon steel, they feature a compact and sleek design with a thinner topline and reduced offset.

The forged head construction allows for a more precise weighting and improved feel and feedback.

The clubface’s micro milling pattern helps increase spin and precision in approach shots, while the Harmonic Impact Technology dampens vibrations for a more pleasant feel.

Hot Metal Irons

Hot Metal irons are designed for golfers of all levels who value distance, forgiveness, and consistency.

Made of Chromoly 4140M steel, they feature a larger head design with a deeper cavity back and a wider sole for increased forgiveness and launch.

The Power Frame technology helps distribute weight to the perimeter of the clubhead, creating a high MOI for added forgiveness and distance.

The clubface’s Variable Face Thickness (VFT) design helps increase ball speed and distance on off-center hits.


The main difference between the Jpx 921 Forged and Hot Metal irons lies in their design and intended use.

The Jpx 921 Forged irons prioritize control, feel, and workability, while the Hot Metal irons prioritize distance, forgiveness, and consistency.

The Jpx 921 Forged irons are better suited for experienced golfers who value precision and shotmaking, while the Hot Metal irons are better suited for golfers of all levels who value distance and forgiveness.

Both sets feature advanced technologies and materials, with the Jpx 921 Forged irons offering a softer feel and increased control, and the Hot Metal irons offering a larger sweet spot and added distance.

Golfers should consider their skill level, playing style, and preferences when choosing between these two sets.

Performance Comparison

The Jpx 921 Forged and Hot Metal irons have distinct differences in terms of their performance.

The Jpx 921 Forged irons offer excellent feedback, workability, and precision. Skilled players can shape their shots and control ball flight with these irons, making them a favorite among better golfers.

On the other hand, the Hot Metal irons have a wider sweet spot, which provides a higher level of forgiveness and consistency, making them suitable for golfers of all levels.

The larger clubhead size and perimeter weighting in the Hot Metal irons also generate a higher launch angle, making them easier to hit from the rough or off-center hits.

Design Comparison

The Jpx 921 Forged and Hot Metal irons have different design features that suit different types of golfers.

The Jpx 921 Forged irons have a smaller head size, thinner topline, and reduced offset that offers a clean and compact look at address, ideal for players who prefer a traditional blade-like look and feel.

The Hot Metal irons, however, have a larger clubhead, wider sole, and deeper cavity back that generates a higher MOI and adds forgiveness and consistency, which is more appealing to golfers who prioritize distance and accuracy over the club’s appearance.

Price Comparison

Another factor to consider is the price difference between the two sets.

The Jpx 921 Forged irons are typically more expensive than the Hot Metal irons because of their premium materials and manufacturing process.

However, it’s important to note that the cost difference may vary depending on where you purchase them, the customizations you make, and other factors.

Performance Comparison

JPX 921 Forged4/53/54/55/55/5
JPX 921 Hot Metal5/55/53/54/54/5
JPX 921 Tour3/52/55/55/55/5
JPX 921 SEL4/53/54/55/54/5
JPX 921 Forged HD4/53/54/55/55/5

Technical Specifications

LoftLieLengthSwing WeightShaft
JPX 921 Forged30°-50°60°-64°37″-35.5″D2True Temper AMT Tour White
JPX 921 Hot Metal30°-50°60°-64°37″-35.5″D1True Temper Dynamic Gold 105
JPX 921 Tour30°-50°60°-64°37″-35.5″D4True Temper Dynamic Gold 120
JPX 921 SEL30°-50°60°-64°37″-35.5″D2Nippon NS Pro 950GH
JPX 921 Forged HD17°-24°60°-64°40.5″-38.5″D1Fujikura Motore X F3

Clubhead Features

Clubhead MaterialFace DesignHosel TypeFinishCG Position
JPX 921 ForgedForged Carbon SteelVariable ThicknessDouble-FlaredSatin ChromeCentered
JPX 921 Hot MetalChromolyRebound FrameSingle-FlaredPearl BrushLow and Deep
JPX 921 TourForged BoronVariable ThicknessDouble-FlaredSatin ChromeCentered
JPX 921 SELChromolyRebound FrameSingle-FlaredBlack IonLow and Deep
JPX 921 Forged HDForged TitaniumVariable ThicknessDouble-FlaredSatin ChromeCentered

Availability and Pricing

JPX 921 Forged$1,399$1,119$1,119$1,119$1,119


User Reviews

JPX 921 Forged4.2/53.7/54.1/54.6/54.8/5
JPX 921 Hot Metal4.5/54.1/53.9/54.4/54.3/5
JPX 921 Tour3.9/53.5/54.5/54.8/54.9/5
JPX 921 SEL4.1/53.8/54.3/54.6/54.4/5
JPX 921 Forged HD4.4/54.0/54.1/54.8/54.9/5

Performance Comparison (Low-Handicap Golfers)

JPX 921 Forged3/54/54/55/55/5
JPX 921 Hot Metal4/55/53/54/54/5
JPX 921 Tour3/53/55/55/55/5
JPX 921 SEL3/54/54/55/54/5
JPX 921 Forged HD4/54/54/55/55/5


The Jpx 921 Forged and Hot Metal irons are both excellent options for golfers, with unique features designed for different types of players.

Choosing the right set depends on the golfer’s skill level, playing style, and preferences.

Ultimately, golfers should test both sets and consider their own personal experience and feedback before making a final decision.


  • Ray Barnes

    Ray Barnes, our Senior Staff Writer and a Golf Analyst with a PhD in Sports Analytics, is a beacon of insight in the golfing world. With a deep understanding of the sport's nuances, statistical analysis, and a talent for demystifying complexities, he provides in-depth analysis and captivating narratives that engage golf enthusiasts worldwide.

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