Choosing the right set of irons is one of the most important decisions when it comes to your golf equipment. A standard set is usually 3 to Pitch Wedge (WP) or 3 to Wedge from Arena (WA) although sometimes you can also find sets with 1 and 2 irons. Increasingly, the 3 and 4 irons are being replaced by hybrid clubs so that among the best sellers are the sets from 4 or 5.
The 3 iron face has a lower loft, 20 degrees vertically, and its launch is low and long, approximately 200 yards. The Pitch Wedge, with 50 degrees of loft, at the other end of the scale gives us high balls but not as far.
The middle irons 4, 5, 6 and 7 cover the relative distances in yards between the clubs at the ends of the table.
How the irons are manufactured
The club heads are manufactured following two different processes:

• Cast irons: they occupy almost 90% of the market and it is a process in which liquid metal is spread over a mold to manufacture the club head. This process allows us to avoid torsion in the centered shots.
  We can also find 17-4 cast stainless steel irons, which refers to the composition of the iron being 17% chromium and 4% nickel. These cast clubs are usually focused for players with low handicaps.
• Forged irons: they are formed by a soft piece of steel to which blows are given to provoke the desired shape. They offer a much higher sensitivity and a higher cost.
• Titanium irons: cast titanium is the same material used in the space shuttle, is as strong as steel and weighs less than half as much as steel. It allows the construction of larger heads with larger optimal shot points. They tend to be very light, very easy to shoot and very forgiving but also the most expensive of the three. They are focused on players with high handicaps.

Steel or graphite shafts
The main difference is the weight, since graphite shafts are lighter, allowing faster swings and longer shots.
Steel is much more durable than graphite and also easier to manufacture and is much more correct in the shots than graphite clubs.
Graphite absorbs more vibration so it is said to have a duller feel on impact, while steel is crisper and louder.

• Shaft flexibility: Hard flex shafts offer greater accuracy with faster swings but shorter distance than others with slower speeds. A shaft with a light flex is good for slower swing speeds, as is the case with senior players. The most common are normal flex shafts as they are suitable for most players.
• Loft and lie: if the iron head is too flat it can offer resistance with the turf and cause deflections to the right. If on the other hand the position is too vertical, the heel will cause cavation and drive shots to the left. So we can conclude that shorter golfers will benefit more from flatter positions and taller golfers from slightly vertical positions.