Mizuno JPX 921 Hot Metal

The JPX 921 Hot Metal is the distance-first iron in Mizuno's lineup, built from Chromoly 4140M with a seamless cup face for ball speeds that tested at or near the top of the game-improvement category in 2021. The 29-degree 7-iron is among the strongest lofts in this catalog, which means distance numbers impress on a launch monitor and disappoint on the wedge gap chart if you do not adjust accordingly. For a used buyer who wants Mizuno's forging reputation applied to a distance-iron format, the 921 Hot Metal is the correct model. The Forged model in the same generation runs 2 degrees weaker per iron, which is the better choice for a player whose current 7-iron is already a 32 or 33-degree head.