Miura-san believed as much in the form of his irons as he did the function. An eloquently forged iron should have a similarly beautiful finish, which is why equal attention is paid to the final steps of the manufacturing process, polishing, producing a smooth club head without any sharp, harsh edges.
Once the grinding process is complete, the club heads are placed in the dynamic barrel polishing machine with small, smooth stones. The movement and vibrations of the machine polishes the club heads to a degree that is unachievable by hand. Each club spends eight hours in the barrel in order to achieve the best result.
Using belts and brushes, the finishing polish eliminates any imperfections that remain from barrel polishing. In order to polish the club head without changing its shape, the attention and precision of a Miura craftsman is needed during this step.
Similar to dynamic barrel polishing, small polished stones are used and combined with a finishing additive. The centrifugal barrel machine runs for two hours, producing a fine film that is necessary for plating and coating.
Last polishing prepares the irons to receive their finishes. Chrome, satin, and matte finishes demand different polishing preparations and are created using specific buffing wheels.
Sandblasting is used to create contrast and definition on the club head. An iron such as the CB-57 has a sandblasted inner cavity with visible contrast on the back of the club head.
The final step in the polishing process is filling the club head. This includes painting the logos, numbers, and colors on each product. Once the final check is complete, the factory ships a finished product that the Miura family can be proud of.
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