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Mizuno JPX 923 Hot Metal Hybrid Combo Iron Set

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Many golfers struggle to generate the requisite clubhead speed and consistency of strike to properly launch their long irons.  Consequently, all the stronger lofted clubs tend to fly the same distance.  To combat this issue, the Mizuno JPX923 Hot Metal Hybrid Combo Iron Set replaces long irons with hybrids featuring an extremely thin, fast face that produces increased ball speeds and a lower, deeper center of gravity which launches the ball higher with wider distance gaps between clubs.

The new Mizuno JPX923 Hot Metal Irons are crafted from Chromoly 4335, which is 35% stronger than the Chromoly 4140M used in the previous generation, JPX921 Irons.  Chromoly 4335 is so durable that it's used in landing gear, transmission gears, and military aircrafts.  This new, extremely tough material allowed Mizuno's engineers to reduce face thickness by 8%, resulting in the thinnest face in JPX history.  The thinner, hotter face generates explosive ball speeds that toe the boundary of what the USGA legally allows.  Additionally, the previously mentioned speed and distance are available across a much larger area of the face.  The 923's more prominent sweet spot works harmoniously with the iron's revolutionary perimeter-weighted design, giving rise to prodigious forgiveness.

Mizuno JPX923 Hot Metal Hybrid Combo Iron Set Features:

JPX Fli-Hi Hybrids

  • Stronger 17-4 stainless steel face and softer 431 stainless steel body allow for a thinner, faster face that produces added ball speed
  • Re-engineered Wave Sole creates a more expansive sweet spot and preserves ball speed on low-face strikes
  • Lower and deeper CG provides wider distance gaps, particularly in the stronger lofts
  • Gradual shaping with fairway wood type profiles in lower lofts and tighter hybrid shapes in higher lofts
  • Graduated lengths further maintain distance gaps and are tuned to perform with the hot metal family
  • Stock Shaft: UST ESX 460 Graphite (senior flex, regular flex) • UST Recoil 95 (stiff flex)
  • Stock Grip: Golf Pride Tour Velvet 360


  • New Chromoly 4335 is 35% stronger, which allows for an 8% reduction in face thickness while maintaining hosel bendability
  • Thinnest face in JPX history produces maximum ball speed across a large area of the face
  • Reinforced cavity frame creates a more solid impact sound
  • GW & SW have a wedge-specific design and the same high-spin, milled quad cut grooves as Mizuno's tour wedges
  • Stock Shafts: UST Recoil ESX 460 Graphite (senior flex, regular flex) • UST Recoil 95 Graphite (stiff flex)
  • Stock Grip: Golf Pride Tour Velvet 360
  • Authorized Mizuno Retailer

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