Mitsubishi MMT 75 Taper Iron Shafts Set of 8 shafts for 3-PW Tip Size: 0.355" Tapered Raw Lengths: 40.0 - 36.5" Shaft Weight: 74 Grams (Stiff) Full set of 8 shafts for your 3-PW. Born from more than 30-years of composite shaft mastery, the new MMT Taper Iron utilizes a patent pending Metal Mesh Technology (MMT) to redefine the possibilities for feel and performance in a composite iron shaft. A unique metal mesh – made from individually braided strands of 304 Stainless Steel – is integrated into the shaft’s prepreg layers towards the tip. This improves density and stability, while also allowing for thinner overall composite wall construction. Together this yields a finely tuned, highly responsive shaft that still provides the consistent launch and spin control needed for effective iron play.