Martin Hopley
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With the King F6 irons, Cobra has gone down the route of optimising the performance of each iron head to deliver the best performance for the given loft.

Cobra King F6 Irons

Cobra achieve this by using different head constructions to get the Centre of Gravity (CG) in the position to deliver the best combination of launch angle and spin.

Cobra King F6 Irons

Within the set there are four types of head combined with three different groove shapes that Cobra has named a TecFlo design, so I will go through each of them individually.

Cobra King F6 Irons

The longer 3-5 irons are made using 17-4 Stainless Steel which is strong enough to create a low and deep Full Hollow iron with an enclosed cavity back.

Cobra King F6 Irons

This also features heel/toe weighting in the design to maximise forgiveness and this is pretty good. Cobra has always done well with this style of iron in that regard, but the large cavity back does make them sound a little on the hollow side and mute the feel a little.

Cobra King F6 Irons

These irons feature the V-shaped grooves that go down through the long irons and into the 6-iron, which, like the 7-iron, now features a Half Hollow cavity back head.

Cobra King F6 Irons

This seemed a little lighter to swing and the zip and feel from the head was the best of the four head styles. The mid-sized head looked very good at address and at impact you could almost feel the speed coming from the head.

Cobra King F6 Irons

The 7-iron to PW is where the grooves change to U grooves as the extra loft means that the wider grooves will channel the same amount of dirt and water away to get more grip on the ball.

The 8-iron is where we move into a full Open Cavity head, which again changes to a slightly louder sound with a marginally firmer feel. As cavity backs go, this was still very good, but compared to the mid-irons it did not feel quite as lively.

Cobra King F6 Irons

Finally in the speciality wedges you have a more traditional Muscle Back blade style head with no cavity back and wider grooves to get more spin on those shorter swings. As you would expect these felt very solid and as cast muscle back irons go, they felt pretty good with a nice balance right down to the Sand Wedge.

Cobra King F6 Irons

The cleaner looks with the slightly darker Nickel Chrome finish are a step up from the previous Cobra Fly-Z irons so if you are in the market for a good looking set of forgiving irons then the Cobra King F6 irons are worth a swing.

Cobra King F6 Irons

Aside from the revised cavity back, the head length and width of the top line is still pretty similar.

Cobra King F6 Irons

The soles on all the King F6 irons are generous and feature the Speed Channel just behind the leading edge that runs round the toe to create a little more face flexing at impact.

Cobra King F6 Irons

Cobra King F6 Irons

Overall I liked the look and style of the mid-sized heads and this is a category of iron where Cobra always seems to get the size and style right.

You can just start to see the back of the cavity on the back of the hollow headed 4 and 5 irons at address, but other than that there is nothing really to detract from another set of quality irons that should appeal to most double digit handicappers.

Cobra King F6 Irons

The forgiveness throughout was very good, as was the performance. As I have commented on before with other brands who have gone down the optimised iron set route, having four different head constructions in the same set doesn't really help the flow of feel from top to bottom, even if they are all performing at their best, because they all sound and feel different.

The long irons fly high and well, but if everything sounded and felt like the 6 and 7-iron with the Half Hollow design then that would do for me. The Cavity Back shorter irons are commendable and it is good to see a forgiving mid-handicap set with some quality gap and sand wedges in there.

Golfalot Rating: 4 stars
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Cobra King F6 Irons - Product Details

Launch UK15 January 2016
Launch USA15 January 2016
Launch RRP£499
Handicap Range
Low
High
GolferMens
Hand AvailabilityLeft, Right
ManufactureCast
MaterialSteel
Swing WeightD0, D1, D2
Shaft NameFST Steel Flighted (Steel), Matrix Red Tie 65Q4 (Graphite)
Shaft TypesSteel, Graphite
Shaft FlexLight, Regular, Stiff
GripLamkin R.E.L. 360
DesignCavity Back
Set Makeup4, 5, 6, 7, 8, 9, PW
Additional Clubs3, GW, SW
Manufacturer's WebsiteCobra Website

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