Mizuno has introduced the JPX900 Series of irons, including the JPX919 Tour, JPX919 Hot Metal and JPX919 Forged, with each model engineered from different base materials to help enhance performance for particular swing types.
The JPX919 Tour is forged from 1025E Pure Select Mild Carbon steel, while the JPX919 Hot Metal is crafted from high-strength Chromoly 4140M. The JPX919 Forged is Grain Flow Forged from Boron-infused steel.
The JPX919 Tour focuses on performance with precision distance control.
It is a more compact, streamlined evolution of Mizuno’s JPX900 Tour iron from 2017-18. Grain Flow Forged HD (High Density) from a single billet of 1025E Pure Select mild carbon steel, the JPX919 Tour is built for soft, pure feel.
The JPX919 Tour has a compact, lean look, with the top edge narrowed by 10 per cent, compared to its predecessor to match grinds commonly requested on tour, while offering stability for a compact players’ iron, with the objective tight distance patterns on off-centre strikes due to a frame that is open at the heel portion to enhance stability and launch, with enhanced vibration and sound at impact.
“The JPX919 Tour’s compact profile doesn’t tell the whole story,” says Jeff Cook, Mizuno’s PGA Tour manager.
“There’s a surprising level of stability and distance control built into this geometry. Its predecessor attracted a new wave of younger tour players into Mizuno irons and made a big impact by winning back-to-back U.S. Opens and recording a course record 61 at St Andrews,” he said.
The JPX919 Tour features a Pearl Brush chrome-plated finish to enhance durability and soften its precise lines in bright sunlight and can be built to a customer’s desired specification as part of a full, split or short set.
Its available in three iron through pitching wedge, right-handed only.
JPX919 Hot Metal
The JPX919 Hot Metal is engineered for a blend of ball speed and soft, controllable landing angles.
High-strength Chromoly 4140M allows for a new multi-thickness face to promote ball speed, while a seamless one-piece cup face construction offers feedback.
It shares the JPX919 Tour’s new stability frame, which is open at the heel portion to enhance stability, launch and a loft-appropriate flight apex for controlled, soft-landing approaches.
Re-engineered Sound Ribs have been developed to hit specific vibration patterns for satisfying sensation through impact, with the JPX919 Hot Metal featuring the same Pearl Brush finish as the JPX919 Tour.
The JPX919 Hot Metal offers a steeper transition into more compact scoring irons and wedges, with set-matching gap, sand and lob wedges available engineered from a softer X30 steel and precision-milled grooves and faces for improved spin and control around the greens.
“The most impressive thing about the JPX919 Hot Metal is the launch control and flight apex,” says Chris Voshall, senior engineer at Mizuno. “The extra ball speed and distance doesn’t come from low-flying bullets – we work the design backwards from the correct landing angles. These are irons for the golf course, not just the launch monitor.”
It’s available in four iron through lob wedge, right-handed and left-handed.
A new reverse-milled clubface, CNC-milled from the sole up to create a larger area of minimum face thickness, enhances the JPX919 Forged measured ball speed.
The resulting weight removed from the face also allows a lower, deeper centre of gravity for greater ease in flighting long and mid-irons, with Grain Flow Forged HD feedback.
Like the JPX919 Tour and JPX919 Hot Metal the JPX919 Forged features a durable Pearl Brush finish and a stability frame, open at the heel portion to enhance stability, launch and loft-appropriate flight apex for soft-landing approaches.
The Forged model is Grain Flow Forged HD (High Density) from a single billet of 1025B mild carbon steel, with just a trace of Boron infused into the billet to make it 30 per cent stronger and allow greater design possibilities in a forged head.
“A deeper, wider milling across the back of the face allows the JPX919 Forged to transfer more energy to the ball than any previous Grain Flow Forged iron,” says David Llewellyn, director of golf R&D at Mizuno. “None of that would have been possible without that small addition of Boron into our steel billets, which gives that additional strength needed to reinforce the face.”
It’s available in four iron through pitching wedge, right-handed and left-handed.