Golf Tutorials

What Is a Putter Golf Club?

By Spencer Lanoue
July 24, 2025

Of all the clubs in your golf bag, the putter is the one you'll use the most, yet it's often the most misunderstood. It's the club responsible for turning a great drive into a birdie or a mediocre approach into a saved par. This article will break down exactly what a putter is, explore the main types you'll encounter, and give you clear, practical advice on how to choose the one that will help you sink more putts.

What Makes a Putter Unique?

A putter is a specialized golf club meticulously designed for one simple purpose: to roll the ball smoothly along the surface of the putting green and into the hole. Governed by the phrase "drive for show, putt for dough," it's arguably the most important club for scoring. While it may look simple, its design is very different from your irons and woods.

  • Minimal Loft: While a driver has around 9-12 degrees of loft to launch the ball high and far, and a sand wedge might have 56 degrees to pop it up quickly, a putter typically has only 2-4 degrees of loft. This isn't for getting the ball airborne, it’s just enough lift to get the ball out of the slight depression it sits in on the grass and start it on a pure, end-over-end roll without any hopping or skidding.
  • Upright Lie Angle: The lie angle is the angle between the shaft and the sole of the club. A putter's lie angle is much more upright (closer to 90 degrees) than any other club. This design promotes a pendulum-like swing and allows you to stand closer to the ball, positioning your eyes directly over the putting line for better aim.
  • Distinctive Grips: The rules of golf allow putters to have grips with a flat edge on one side. This flat top helps you place your thumbs consistently and reduces the tendency to rotate your wrists during the stroke, leading to a more stable clubface through impact.
  • Focus on Stability (MOI): Modern putters are engineered with a high "Moment of Inertia" (MOI). In simple terms, MOI is a measure of an object’s resistance to twisting. A putter with a high MOI will be more forgiving on putts that aren't struck dead-center. The weight is often pushed to the heel and toe, which prevents the face from twisting open or shut on off-center hits and helps your mis-hits roll truer and stay on line.

Blade vs. Mallet: Choosing Your Style

When you walk into a golf shop, you'll see a sea of different putter shapes. At the highest level, they all fall into two main categories: blades and mallets. Understanding the difference between them is the first big step in finding the right putter for your game.

The Classic Blade Putter

The blade putter is the traditionalist’s choice. With a simple, clean, and narrow head shape, it’s what you probably picture when you think of classic golfers from generations past. Players who prefer blade putters often praise them for their superior "feel," meaning they can better sense the quality of the strike through their hands.

Most blade putters feature significant “toe hang.” If you balance the shaft horizontally on your finger, the toe of the club head (the part farthest from the hosel) will hang down, pointing toward the ground. This design is best suited for players who have an arcing putting stroke - a stroke that moves on a slight inside-to-square-to-inside path, much like a miniature full swing. The toe-hang helps the clubface naturally open on the backswing and close through impact, squaring up perfectly to the target.

  • Best For: Golfers with an arcing stroke and those who prioritize feel and workability.
  • Feel: Offers detailed feedback on every putt. You'll know exactly where on the face you made contact.
  • Forgiveness: Typically less forgiving than mallets on off-center strikes.

The Modern Mallet Putter

Mallet putters feature much larger, more creatively shaped heads. They come in all sorts of designs, from semi-circles and squares to futuristic, spaceship-like contraptions. The primary design goal behind a mallet is to increase stability and forgiveness.

The larger head allows designers to distribute weight far away from the clubface, dramatically boosting the MOI. This makes mallets incredibly stable and resistant to twisting on mis-hits. They are also often "face-balanced." If you perform the same balance test, the face of a face-balanced putter will point straight up to the sky. This design is ideal for players who use a straight-back and straight-through putting stroke, where the putter path stays square to the target line throughout the motion. The balance of the head helps you keep it square with minimal face rotation.

  • Best For: Golfers with a straight-back, straight-through stroke or anyone looking for maximum forgiveness.
  • Design: The larger shapes often incorporate prominent alignment lines and aids, which many golfers find helpful for aiming.
  • Forgiveness: The star of the show. Your mis-hits will often roll nearly as far and as straight as your good strikes.

More Than Just a Head: Other Putter Features to Consider

The head shape is a major consideration, but other elements play a huge part in how a putter performs and feels.

Putter Length: Finding the Right Fit

Putter length is vital for establishing good posture and ensuring your eyes are correctly positioned over the ball. Standards range from 33 to 35 inches. A putter that’s too long will force you to stand too upright and grip down on the shaft, while one that’s too short will cause you to hunch over excessively. Neither is ideal for a consistent, repeatable stroke.

A Quick Tip for Sizing: Find a shop with a putting green. Assume your natural, comfortable putting posture, letting your arms hang down freely from your shoulders. The grip of the correctly-sized putter should fit right into your hands without you needing to reach or scrunch up. Your elbows should have just a slight, relaxed bend.

Grip Styles and Sizes

Putter grips have evolved tremendously. The a choice you have now are amazing.

  • Standard/Pistol Grips: These are thinner and often have a "pistol" shape that fits into the top hand. They provide a lot of feel but can sometimes encourage too much wrist or hand action for some players.
  • Oversized Grips: These much thicker, "jumbo" grips have become incredibly popular. The main idea is to reduce the small, twitchy muscle action in your wrists and hands. By filling up your hands more, they encourage a more stable "rocking" motion powered by your shoulders.

There is no right or wrong here - it's 100% about personal preference and what helps you feel stable and confident over the ball.

How to Choose the Right Putter for You

Okay, with all that information, how do you actually pick one? Here’s a simple process to follow.

Step 1: Understand Your Stroke

First, figure out your putting stroke path. Head to a golf shop's practice green. A simple drill is to get a feel for your natural rhythm. Some people swing the putter straight back and straight through like a pendulum. Others have a natural arc where the putter swings slightly inside on the backswing, comes back to square at impact, and moves back to the inside on the follow-through. Be honest with yourself about your tendency. If you have an arc, look at blade-style putters or mallets with some toe hang. If you are more straight-back-and-through, a face-balanced mallet is likely your best starting point.

Step 2: Go to a Golf Store and Try Everything

Forget brands and price tags for a moment. Grab a handful of putts - a classic blade, a mid-mallet, a big mallet - and head to the practice green. Hit several 10-foot putts with each. What feels good in your hands? What looks good to you when you set it down behind the ball? Confidence is a huge part of putting, and you need to like what you're looking at.

Step 3: Focus on Alignment

Once you’ve narrowed it down, pay close attention to the alignment aids on the top of the putters. Some have a simple line, some have two or three lines, some have dots, and others use the shape of the head itself to help you aim. The one that’s right for *you* is the one that makes you feel like you can easily point it right at your target.

Step 4: Roll a few long Putts

Finally, find a putter that feels good and helps with aim. Now is when you should check the brand and the price tag! Putters are all about what’s right for your style and your confidence. A putter that feels right in your hands and looks good to your eye will always outperform a more expensive one that doesn’t suit you.

Final Thoughts

The putter is a deeply personal club, a blend of technical engineering and artistic feel. Understanding whether you need a blade or a mallet, and whether your stroke calls for toe hang or a face-balanced design, is the foundation for making a great choice. Taking the time to find one that feels like an extension of your own hands will make a real, measurable difference in your confidence and your scores.

We know that concepts like "toe hang" or "MOI" can feel a little technical, and asking the right questions is the fastest way to get better. That's why we built Caddie AI. It's a place where you can get clear, plain-English answers to any golf question, anytime. Whether you want to understand your putting stroke better or need a second opinion on a tricky putt on the course, we're here to give you expert insight right when you need it, helping you walk onto every green with more clarity and confidence in your game.

Spencer has been playing golf since he was a kid and has spent a lifetime chasing improvement. With over a decade of experience building successful tech products, he combined his love for golf and startups to create Caddie AI - the world's best AI golf app. Giving everyone an expert level coach in your pocket, available 24/7. His mission is simple: make world-class golf advice accessible to everyone, anytime.

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