Mizuno JPX-900 Hot Metal vs Mizuno JPX-919 Hot Metal
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | JPX-900 Hot Metal loft | JPX-919 Hot Metal loft | JPX-900 Hot Metal lie | JPX-919 Hot Metal lie | JPX-900 Hot Metal length | JPX-919 Hot Metal length |
|---|---|---|---|---|---|---|
| 4 | 21 | 20 | 60 | 60 | 38.25 | 38.5 |
| 5 | 24 | 23 | 60.5 | 60.5 | 37.75 | 38 |
| 6 | 27 | 26 | 61 | 61 | 37.25 | 37.5 |
| 7 | 31 | 30 | 61.5 | 61.5 | 36.75 | 37 |
| 8 | 35 | 35 | 62 | 62 | 36.25 | 36.5 |
| 9 | 40 | 40 | 62.5 | 62.5 | 35.75 | 36 |
| PW | 45 | 45 | 63 | 63 | 35.5 | 35.5 |
| GW | 50 | 50 | 63 | 63 | 35.25 | 35.25 |
| SW | 55 | 55 | 63 | 63 | 35.25 | 35.25 |
| LW | 60 | 60 | 63 | 63 | 35.25 | 35.25 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- JPX-900 Hot Metal
- JPX-919 Hot Metal
What the differences mean
At the 7-iron, the JPX-900 Hot Metal is 31° and the JPX-919 Hot Metal is 30°, a 1° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the JPX-919 Hot Metal should carry roughly 3 to 4 yards further with that club, on a slightly lower, shallower flight than the JPX-900 Hot Metal. Across the 10 clubs both sets share, the JPX-919 Hot Metal averages 0.4° stronger, with the largest gap at the 4-iron (21° vs 20°). Beyond loft, the JPX-919 Hot Metal 7-iron is 0.25 inches longer (36.75" vs 37").
Both are game improvement irons, built for roughly 10 to 25 handicaps. Perimeter-weighted cavity backs with wider soles, more offset and stronger lofts, aimed at mid handicaps. Because they target the same golfer, the decision comes down to the specific loft, feel and shaping differences rather than who the sets are made for.
Both heads are listed as investment cast. With the build method this similar, differences in feel come down to head size, sole width, topline and offset rather than how the heads are made.
The JPX-919 Hot Metal arrived 2 years after the JPX-900 Hot Metal, a typical one-generation refresh. Changes over that span are usually incremental: refined face thickness, revised weighting, updated looks and small loft tweaks rather than a new concept. Here the 7-iron loft moved from 31° to 30°.
Which should you choose?
The JPX-919 Hot Metal is the stronger-lofted set — up to 1° stronger than the JPX-900 Hot Metal on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Mizuno JPX-900 Hot Metal specs and Mizuno JPX-919 Hot Metal specs.
Frequently asked questions
Is the Mizuno JPX-900 Hot Metal stronger lofted than the JPX-919 Hot Metal?
No. The JPX-919 Hot Metal is the stronger-lofted set: its 7-iron is 30° against 31° for the Mizuno JPX-900 Hot Metal, 1° stronger and worth roughly 3 to 4 yards of extra carry.
What is the loft difference between the Mizuno JPX-900 Hot Metal and JPX-919 Hot Metal?
At the 7-iron the difference is 1° (31° vs 30°). The largest gap on a shared club is 1° at the 4-iron, and 4 of the 10 shared clubs differ.
Are the Mizuno JPX-900 Hot Metal and JPX-919 Hot Metal aimed at the same golfer?
Yes. Both are game improvement irons, built for roughly 10 to 25 handicaps. Choose on feel, looks and gapping, ideally after hitting both.
Do the Mizuno JPX-900 Hot Metal and JPX-919 Hot Metal have the same lie and length?
Not exactly. At the 7-iron the Mizuno JPX-900 Hot Metal is 61.5° lie and 36.75 inches, the JPX-919 Hot Metal 61.5° and 37 inches. Both can be bent or built to your own fit.
Shop Mizuno JPX-900 Hot Metal
Compare prices for new and used sets on eBay:
We may earn a commission from purchases made through links on this page at no extra cost to you.