The process begins with cylindrical sticks of mild iron. The cylindrical stick is heated to 1200 degrees Celsius to maintain the characteristics of mild iron.  
The cylindrical stick is heated and then struck with the forging hammer at a pre-set precise force to create the rough shape of the club head.  
After trimming the edge, the forging is then struck a second time with the forging hammer, again at a pre-set precise force to further refine the club head and remove excess metal. This stroke begins to define the unique molecular structure of the Miura forged iron.  
The forging is then struck a third and final time, again at a pre-set precise force, to further refine the club head and to finally define the stable and uniform molecular structure of the club head. At this stage the iron head has a smooth and unblemished finish.  
The number, name and score lines are then pressed in to the club head.  
The hosel is a separate piece of high quality steel which is welded onto the club head using Miura's proprietary spin welding process. The welding method can be adjusted by angle of attachment to provide for precision of both loft and lie characteristics in a manner that is unsurpassed in the industry.  
Expert grinders then make the final adjustments of weight, finish and design to the club through precision grinding and polishing techniques. It is said that a professional or low handicap golfer can sense the slightest weight difference in a club, as small as 1g. The ability of Miura to have the fundamental weight adjustment occur during the forging process, rather than the grinding process, creates a uniformity of club head weight which cannot be matched by other manufacturers.  
Perfect polishing cannot be done by hand. Miura puts the final polish on his irons by rotating them through a polishing barrel. Three different looks are achieved by the three different techniques; vibration, centrifugal and dry barrel polishing.  
To give the perfect feel for a golf shot, Miura uses nickel chrome or W nickel (satin) plating on the face of the club and for the finish of the rest of the club, copper is added to the nickel plating.

Miura has a proprietary plating technique whereby the face of the club can be raw and unpolished while the rest of the clubs is plated.

 
Masking tape is used during the sand blasting process. Grit is blasted onto the face of the club to give additional spin control.  
Paint fill is then added to the stampings to achieve the final look.

Each club head is carefully inspected before it is sent to the customer.