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JPX-850 Forged

  - Mizuno
Mizuno engineers spent six years designing these irons, which include boron in the clubface. The material is advertised as being 30% strong than the 1025E carbon steel billets used on most other forged Mizuno clubheads.

4-iron: 22°
5-iron: 25°
6-iron: 28°
7-iron: 32°
8-iron: 36°
9-iron: 40°
PW: 45°
GW: 50°