DID Golf Journal

Forging Temperature Matters More Than Material
The golf industry has spent decades marketing material. S20C. S25C. 1025. Everyone has a number. But the number on the spec sheet doesn't tell you how the club was made.Forging happens at 1,482°C. The temperature, the number of strikes, the cooling time — these variables shape the grain structure of the metal more than the material designation does. A well-forged S20C head can outperform a poorly forged S25C head. Every time.DID is a design brand, not a materials brand. We care about process. We care about outcome. The material is... Read more...
If Tour Players Don't Use It, We Don't Sell It
Tour First isn't a marketing strategy. It's a filter.Everything DID releases has been tested by professional players at the highest level of the game. If a club can't hold up under those conditions — under real pressure, real swing speeds, real scrutiny — it doesn't come to market.We've been in contact with Tour players. The feedback loop is real. We're not designing clubs based on what we think will sell. We're designing clubs that players at the top actually want to use. Read more...
Diamond Hardness: What Happens When You Put Ceramic in a Club Face
Most club faces are steel. Steel transfers energy efficiently — but there's a ceiling on how hard it can be without becoming brittle.DID's Z Face uses zirconia ceramic, with a Vickers hardness of 1,100–1,300 HV. For reference, steel sits around 200 HV. Diamond is 10,000 HV. We're not claiming we put diamond in a club — we're saying we moved significantly up that scale in a way that translates to measurable ball speed.Harder face. More energy transfer. The physics works. Read more...
One Tenth of a Millimeter: The Gap You Can't Feel That Changes Everything
±0.1mm. That's the tolerance we hold on every DID club head.You won't feel 0.1mm in your hand. But you'll see it in your data: launch angle, spin rate, carry distance — all more consistent than a head built to ±0.3mm or ±0.5mm. Tighter tolerances mean the club performs where it's supposed to perform, every time.This is why we finish every head in Japan. Not for the label. For the number. Read more...
Weight Has to Go Somewhere: How DID Keeps the Ball Straight
Physics doesn't lie. Every club head has a fixed weight. The question is where you put it.Most manufacturers concentrate weight toward the center — it looks clean, feels solid, but when you miss the sweet spot, that's when the ball drifts. Perimeter Weighting (PW) distributes mass along the outer edges. A larger effective sweet spot. Less twist on off-center hits. The ball goes where you aimed it.DID holds a US-certified patent on this technology. Not a marketing claim — a measurable, verified result. Read more...
In 1985, the Designer's Name Was on the Club Head. Then It Disappeared.
In the 1970s and 1980s, golf club designers were celebrities. Ben Hogan, Arnold Palmer, Ping's Karsten Solheim — their names were engraved on the club heads. That signature was a mark of quality. Golfers weren't just buying a club. They were buying someone's thinking, someone's obsession.Then the market consolidated. Brands swallowed designers. Design committees replaced individuals. Today, can you name a single contemporary club head designer?One reason DID exists is to bring this back. There's a person behind every club. That's worth knowing. Read more...