Since 2013, Dumina has rejected the idea that shaft performance has to be a trade-off. Our engineering philosophy is built around a single belief: the shaft should do more of the work, so the golfer does less.
Korea Hidden Technology — our proprietary internal construction releases clubhead speed at the moment of impact, not before.
20–30 grams lighter than conventional shafts without sacrificing stability — by reallocating mass where it matters.
Every shaft is frequency-matched to ±2 CPM. No statistical flex inconsistency — the shaft you order is the shaft you get.
In a traditional shaft, the kick point is a fixed region in the graphite. It loads and unloads based on the force the player applies. The faster and more aggressive the swing, the more the shaft responds.
KHT inverts that relationship. The internal structure stores and releases energy automatically — on the player's tempo, not the player's strength. The result is that smoother swings and slower swings access the same dynamic loft advantages that used to be reserved for tour pros.
Deep dive: How KHT works →Dynamic loft at impact vs. conventional shaft
RPM reduction in backspin on driver
Average carry distance improvement
Shot dispersion tightened (side-to-side)
Aggregate data from indoor-studio launch monitor testing across 120 amateur players, 2022–2025.
Watch KHT explained by our engineers and try a Dumina shaft at an authorized fitter.