From a six metre steel rod heated up to 1200°C to an elegant and precise golf club ground by eye and hand, our forging process guarantees that the metals natural grain is preserved in every step of the process.
The steel behind Mizuno's softest feeling irons. Used in our one piece irons for higher level players seeking the ultimate in precision and feedback. 1025 is used for its balance of strength, bend‐ability and feel. The evolution to 1025E reduces unnecessary elements that occur during the forging process – phosphorus and sulphur.
Introduced in 2014 to combine the precision of a forged iron with the ball speed of a distance iron. Widely used in other industries, the smallest trace of boron to the steel mix increases its strength during manufacture, allowing Mizuno to create more complex one piece Grain Flow Forged irons.
Initially applied in Mizuno's high ball speed Hot Metal irons ‐ Chromoly made the cross over to a Mizuno's forgings with staggering results in the JPX919 Forged. Allowing even more complex face geometry and Mizuno's first forged distance iron.
Cookie cutter roughly trims off the excess metal from the cooled heads, known as the flash…
Final Grain Flow Forged head ready for stamping, polishing, plating and assembly.