Mitsubishi MMT Iron Shaft Review

50 Words or Less

A composite shaft of graphite and steel, the MMT Iron from Mitsubishi Chemical provides consistent performance and a responsive feel.  Terrific clean look.


For over three decades, Mitsubishi Chemical, better known in the golf sphere as MCA, has been at the forefront of implementing new materials and technologies into their golf shafts.  So when I see new products like the MMT Irons series announced by MCA, my interest is piqued.

MMT stands for Metal Mesh Technology – the integration of metal mesh in the layers of prepreg towards the tip of the shaft.  Prepreg, for you non chemical engineers, is tech talk for resin reinforced fabric pre-impregnated with carbon fibers.  Let’s move on from the classroom.


It took me a while to notice the stacked ‘MMT’ integrated into the graphics.  Another subtlety is the ‘TYPE-304SS’ in glossy black that mystically appears when the light catches it just right.  The tiny grey dots remind me of equalizer screen patterns.  The matte black finish and understated graphics on the MMT shafts should pair well with most grips, but looks particularly sharp with my grey Golf Pride MCC Plus4s.


The MMT Iron shafts have a wonderful overall feel that invokes confidence.  During slower, warm up type air swings, the shaft had a balanced, solid feel.  When I cranked up the speed, a stiffer butt revealed itself.

Adding a ball into the mix, the tip section with its 304 stainless mesh felt stable with a low kick point.  Although sections of the MMT shaft have some distinct feel attributes, there’s a harmonious flow that’s very pleasing.


Before getting into the specifics of performance, I want to clarify that this is a review of the parallel tip MMT Iron shafts, not the MMT Taper Irons.  That’s important because the different models have different launch and spin profiles.  The MMT Irons are designated mid launch and mid spin.  The MMT Taper Irons are designated mid/low launch and mid/low spin.

My test results with the MMTs showed very consistent ball flights.  Dispersion was fairly tight with repeatable distances.  The consistent distance made the trajectory graphic on Trackman look really impressive with lines that blurred together.  Both launch and spin were on the plus side of mid – fitting that ideal performance zone for my swing.


My instinctive positive reaction upon learning about a new MCA shaft was right on target.  The MMT Iron shafts have a distinctive feel that’s reflective of strong performance.  The Metal Mesh Technology provides stability without sacrificing responsiveness.  Consistency across the performance spectrum.  The parallel tip MMT Iron shafts are perfect for the golfer who may need a little help getting the ball in the air.

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Matt Meeker

Matt lives in sunny Orlando with his wife who allows his golf obsession to stretch the limits of normalcy. He's also a proud coach with The First Tee of Central Florida who loves teaching kids about golf and life skills.

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  1. Will anybody be testing the heavier/stiffer versions?

  2. Nice write up Matt. Just did a complete fitting with Zachary at Club Champion in Palm Desert, ca. The MMT Parallel iron 80 is what he fit me into. Loved the feel of these in the Ping G700s

  3. I put a MMT .370 tip 90G Stiff in my Epic Flash hybrid. It’s an excellent hybrid shaft! Very straight with excellent height. Stable as can be out of gnarly lies too. For a $100 installed (included shaft, tip and grip) it’s an excellent value too.

  4. Jeff Bender

    How do these compare to the OTI shaft

  5. Do Ping or Callaway for example accept parallel tip shafts??

    • Although easiest for club builders to match shaft tips with hosel designs, they can install any combination.

      – Meeks

  6. How to tell what mmt shaft you have in your irons?

    • Parallel have even shaft weights, taper have odd.

      – Meeks

      • I’m looking to make the switch to graphite iron shafts. PXG has a great deal right now that includes these shafts. In my early 20s I was a 2 handicap, but now in my mid 30s, I don’t play enough to even have an established handicap. I can keep it in the 70s but don’t expect to break par much anymore. I could use a little more clubhead speed and a higher launch. I really haven’t found a definitive answer on whether pretty good players have success switching from iron to steel. Thought you might shed some light or offer an opinion since you’ve tested this shaft. Please and thank you!

        • Matt Meeker

          There are PGA pro’s playing graphite, so that should answer your fundamental question. Graphite materials and fabrication technology continue to advance, so many of the ‘old’ reasons for the logic of who should play what have gone away. It’s not a matter of how ‘good’ someone is, but rather what performs best.

          – Meeks

          • These MMT at 80 Reg. didnt feel too light? Flex wise it was probably spot on. I always get fit into Stiff but every graphite iron shaft in Stiff feels so boardy. Around 95g-105g may be just right and in Reg flex, sound crazy? That PXG deal is sweet but they only have super light graphite options especially in Reg. flex.

  7. Hi, how are these compare to KBS TGI 80 ?

    • Matt Meeker

      For me, both shafts perform similarly. It’s been a while since I hit them both in the same session, so I can’t recall specifics about feel differences. Hopefully you can do a side by side comparison for yourself – it’s the only way to know what performs best for you and which feels best.

      Thanks for reading.

      – Meeks

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