Saying “a blade is just a blade,” is like equating all coupes to just two-door cars because of their similar design characteristics, when in fact, just like cars, every line and transition along the body is as important as what’s under the hood.

To define a “blade,” it is a club design that features a solid mass behind the hitting area, with a thinner sole and higher center of gravity to create greater workability. Blades are less forgiving than cavity backs and were given their name thanks to their thin look resembling knives.

Blades are easy to recognize even from a distance, although there are irons on the market that resemble blades by appearance but offer a lot of technology and forgiveness.

If we’re going to stick with the car analogy, it’s the equivalent of rolling up to a red light with a “sleeper”—it looks docile but is packed with horsepower.

Most OEMs do not replace blades in their lineups as frequently as other models because of the lack of technological advancement compared to game-improvement clubs. Instead, blade models are generally replaced as player preferences change and are a reflection more of playing conditions than technology.

If we compare older blade irons to modern ones, for example, the easiest difference to spot is the sole profile. Older clubs have flatter, less cambered (radius from the leading edge to the back of the head) soles compared to modern clubs that are much more rounded to help improve turf interaction. These are the other key design elements that make up the profile of an iron.

• Topline: The topline of a club plays one of the biggest factors on how the club looks from address. The general rule of thumb is thick toplines inspire confidence since there is more “mass” behind the ball, but in some cases—like Rickie Fowler’s new irons, thinner is the winner.
  

  The topline of Rickie Fowler’s 7-iron

• Sole: Over time, sole profiles have become more homogeneous compared to other design elements because they have evolved as turf conditions have improved. As mentioned earlier, modern blades with more bounce and camber are much easier to hit in varying conditions.
  

  1960s Hagen (left) vs. 2020 Mizuno (right)

• Toe profile: Similar to the topline, the toe profile will drastically change the look of a club. Although each one of slightly different they generally fall into three categories; square, rounded, and teardrop. Square toe irons are less common and the result in a sharper angle where the toe meets the topline. Round is the most modern style that you see on most irons today, and two of the best examples are the Mizuno MP20, and the Titleist 620 Blade. The teardrop profile is more commonly found in JDM (Japanese Domestic Market) clubs but a good representation of this would be the Ping BluePrint.
  

  Address profile of the Ping Blueprint

  The toe profile also plays a big part in how long the blade length appears from the address position, with the square toe making the club look the shortest.

So next time you are looking at a set of blades, pay close attention to the small details around the head to help you figure out the ideal clubs for you.

You can also find discussions on blades, among many other topics in our GolfWRX General Equipment Forum