Cobra King Forged One Length irons review

Do single length irons work in practice?

Golf Monthly's Cobra King Forged One Length irons review, a full test of the Single Length irons concept said to make consistent ball striking an easier task

The single length iron concept, pioneered by Cobra Staffer Bryson DeChambeau, is interesting not only because it is unique, but because the concept has already been successful and has the potential to improve the consistency of golfers of every ability.

 Watch: Cobra King F7 irons review

Put simply, DeChambeau’s irons are all 37.5 inches in length, similar to that of most golfers’ 7-irons, and they have the same lie angle. The only thing that changes is the loft and the head weights. This concept enables the golfer to swing each iron in exactly the same way. Presently, irons within a set get become progressively longer as the loft reduces, requiring golfers to make subtle changes to their set-up in order to strike the ball consistently.

Cobra King f7-one-length-irons-web

But with irons of the same length, these changes are not necessary. Golfers can stand the same distance from the ball with the same posture and swing the club on the same plane angle, whether it’s a 4-iron or a pitching wedge.

Watch: Cobra King Oversize irons review

On the face of it, this is a concept that should create a more consistent, repeatable golf swing. Because the golfer stands and swings in the same way, it should help produce a more consistent strike pattern on the clubface by eliminating many of the variables that make golf such a frustrating pastime.


But do single length irons attempt to solve a problem that doesn’t exist? After all, golfers have been playing with irons of different lengths since clubs were first mass-produced and managed just fine. The subtle changes needed in your set-up between different irons is not something that golfers consciously think about, as the length and lie and angle of a club dictates to some degree how to stand to the ball.

Watch: Cobra King Forged Tour irons review

Additionally, there will be changes to the swing speed of the long and short irons because of the change in length and then there’s the whole other topic of the short game, and what length the wedges should be in order to be able to pitch and chip comfortably as well as hitting full shots.

bryson dechambeau

But while there are some negatives, I think they are comfortably outweighed by the positives. Manufacturers have already come up with ways to offset the changes in club speed of the long and short irons compared to standard sets by altering the lofts, head weights and CG positions accordingly to even out the distance gapping through the set. Having tested Cobra’s new Forged One irons in the video above, it left me wondering why all iron sets aren’t made like this.

Joel Tadman
Technical Editor

Joel has worked in the golf industry for over 12 years covering both instruction and more recently equipment. He now oversees all product content here at Golf Monthly, managing a team of talented and passionate writers and presenters in delivering the most thorough and accurate reviews, buying advice, comparisons and deals to help the reader find exactly what they are looking for. So whether it's the latest driver, irons, putter or laser rangefinder, Joel has his finger on the pulse keeping up to date with the latest releases in golf. He is also responsible for all content on irons and golf tech, including distance measuring devices and launch monitors.

One of his career highlights came when covering the 2012 Masters he got to play the sacred Augusta National course on the Monday after the tournament concluded, shooting a respectable 86 with just one par and four birdies. To date, his best ever round of golf is a 5-under 67 back in 2011. He currently plays his golf at Burghley Park Golf Club in Stamford, Lincs, with a handicap index of 3.2.

Joel's current What's In The Bag? 

Driver: Titleist TSR3, 9° 

Fairway wood: Titleist TSR3, 15° 

Hybrid: Titleist TSi2, 18° 

Irons: Ping i230 4-UW

Wedges: Titleist Vokey SM8, 54°. Titleist Vokey SM9 60° lob wedge, K Grind

Putter: Evnroll ER2V 

Ball: 2023 Titleist Pro V1x