ONOFF builds the Kuro Forged for good players who want to fiddle. It pairs a soft spring-steel face with a weight screw that changes swing balance, and it scored 8.3 in a 2026 players' iron test.
What's new
Under the forged S20C shell sits a hollow body packed with vibration-damping material, closed off by a rolled SAE8655 spring-steel face. ONOFF laser-mills a crosshatch pattern into that face and runs its Full Core Groove across it. The set launched in Japan on September 19, 2025.
OTCS pairs a 5 g turn weight with a 4 g screw to move swing balance a point up or down, and fitters can bend loft a degree and lie 2 degrees either way. Stock shafts are an N.S.PRO 950GH neo at 97 g or a MODUS3 TOUR 110 at 102 g, under a 50 g grip.
How it plays
Feel carries this iron. It scores 8.7 there, its best number, and the spring-steel face gives off a soft, springy response that a solid blade does not. Workability follows close behind at 8.6, which suits a low handicapper who wants to move the ball both ways.
Distance and accuracy both land at 8.3, and forgiveness holds 8.2, so the hollow body buys some help on thin strikes without turning the head chunky. Add the OTCS screw and you can set trajectory and balance to your own swing instead of living with a factory number.
Where it lacks
Value scores 7.4, the only number below 8. A five-piece set costs as much as the priciest forged irons on the market, though the US importer has been selling under list.
The set runs 6-PW, 28 to 44 degrees, so anyone who carries a 5-iron or 4-iron needs a hybrid or a single iron bought separately. In the US, stock sits with one specialist importer, so expect to order rather than walk into a shop and hit one.
“It feels soft enough to justify the money, if you will actually use that weight screw.”- The Club Stand gear team
Reasons to buy
- SAE8655 spring-steel face gives a soft, lively feel at impact
- OTCS weight screw adjusts trajectory and swing balance one point at a time
- Machined finish and Made in Japan build quality show up in the hand
Reasons to think twice
- Set pricing sits at the very top of the forged iron market
- A five-piece 6-PW set leaves long irons to a hybrid or a separate purchase
- US buyers have to go through a specialist importer to get one
Specs
| Set | 6-PW, 5-iron set (28-44 degrees) |
|---|---|
| Head | Forged S20C hollow body, SAE8655 rolled spring-steel face |
| Face | Crosshatch laser milling, Full Core Groove |
| Adjustability | 5 g turn weight and 4 g weight screw (OTCS: swing balance plus/minus 1), loft plus/minus 1, lie plus/minus 2 |
| Stock shafts | N.S.PRO 950GH neo (S) 97 g or N.S.PRO MODUS3 TOUR 110 (S) 102 g |
| Grip | ONOFF GR 50 g, no back line |
| Origin | Made in Japan |
| Best for | Low-handicap golfers who want soft feel and trajectory and balance tuning |
More irons we've scored
- Wilson DYNAPWR Forged 2026 - 9.1/10. Wilson's forged players distance iron led its class in a 2026 iron test, and it costs flagship money.
- PING i240 2026 - 9.0/10. A soft, workable players cavity back from PING that finished third of 15 in its 2026 class.
- Ballistic Forged CB Irons 2025 - 9.0/10. A small Canadian maker builds this forged players cavity back to order, far below OEM players prices.
- Tour Edge Hot Launch Max D 2026 - 8.9/10. A hollow ironwood set that won its super game-improvement test on accuracy, at value-tier money.
- Takomo Iron 101 MKII 2026 - 8.9/10. A hollow game improvement iron that won its 2026 class test without asking for big money.
- Tour Edge Exotics CB 2025 - 8.9/10. A forged cavity back from Tour Edge that beat 14 rivals to win the 2026 players iron test.