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AT91 Long Putters (Right Handed)

Switch Hand
  • Very forgiving with outer heel toe square weight bars.

  • Better target direction from the use of the alignment lines and square bars.

  • More fogiveness with the extra face height.

$ 410
On Sale
$ 229 each

AT91  Long Putters<small> (Right Handed) </small>

AT91 Long Putters (Right Handed)

The AT-91 mallet style putter provides extra weight for those who like to feel the head through the stroke. The unique alignment design offers exceptional visualization and accuracy. This high quality putter is complete with machine-milled face insert and multi-step black stealth finish to eliminate glare and provide durability.


The AT-91 has achieved the most extreme MOI by combining an extra-light aluminum body with heavy weight bars placed to the far perimeter of the toe and heel.

The weight bars are the first ever with flat tops and sides to further improve alignment of the putt.

This AT-91 model is center-shafted for greater stability during the stroke.

It features a machined face and high grade CNC-milled red aluminum striking plate insert.

The extended mallet design offers a little extra heaviness for golfers who prefer more weight than traditional style putters.

Alignment Technology

Thomas Golf's putter alignment systems are the result of extensive studies in visual perception and application of expert design methods.

The wide channel and golf's first squared weight bars frame the ball and the 3-dimensional visualization provides excellent visualization and guidance for your putt. The channel works in synergy with the bi-level aiming indicator to ensure proper direction and that your head is correctly positioned over the golf ball. On the upper surface in front of the white directional line is a distinct white dot that aligns to let you know when your eye is directly over the ball.

The squared silver weight bars are much heavier than the black aluminum of the body, shifting weight placement to the far perimeter of this face-balanced putter for an extremely high MOI, creating even better forgiveness and truer roll.


The AT-91 putter is treated with a multi-step black stealth finish to eliminate glare and provide long lasting durability.  

  • Strict tolerance zones for all materials, dimensions, and performance
  • Multi-step black stealth finish for durability, and anti-reflection
  • Computer Numeric Controlled cut face, the flattest in golf
  • Fixed-position squared weight bars produce high MOI to reduce head twisting
  • Unique bi-level indicator ensures your head is positioned directly over the ball
  • Consistency of the metal is never compromised by the extreme heat of welding
  • Loft: 3°
  • Head weight: 396 grams (Increase to any weight desired by adding tungsten weights, click here to buy  Tungsten )
  • Custom built to any length
  • 12-Month warranty on all materials & workmanship
Shafts & Grips

This table shows the shafts and grips you may choose from when you build your custom putter by clicking the "Customize/Buy" button above.


Standard-weight steel shaft

Stepless Chrome-Plated Stainless Steel Shaft, designed to provide feel & stability.



Thomas Split Grip

Two-Piece Split Grip

  • Grip consists of a 5" segment at the butt-end, then a longer 13" segment.

  • This newly engineered compound provides the optimum balance of comfort, control, durability and shock absorption.
  • Specially designed wrap style provides exceptional traction and surface feel throughout the grip.


Custom Fitting


Fitting Instructions for Custom Long Putter

Items Needed:

- 2 People (you and assistant)
- Your current putter
- Tape measure
- A coin

  1. 1. Address the coin like you would a golf ball, and establish your normal putting stance.
  3. 2. While you hold this position, assistant uses a tape measure to measure the distance (Red Line) from where you would like the butt-end of the grip to rest, down to the center of the coin. (not straight down)
  5. 3. Click the green "Customize/Buy" button above and choose this length measurement on the next page.

* Please note, your putter will be built with up to 1/2 inch extra length to ensure a snug fit to your body.


Extremely useful alignment on your left handed AT91. Nice of you to include us lefties, thanks. This is the most rewarding putter I have used, love a mallet and this is the most stable one I’ve tried. Three puts are now rare – Thanks

- Mike Evens
I wanted to thank you sooo much for your clubs!!! I'm a very high handicapper and I was really looking for something good that could improve my game without killing my finances. I bought the entire series of AT 505 irons and AT 30 putter with the specification you suggested. Honestly at the beginning it was a little bit frustrating because I had to readjust to the new clubs the aiming line etc. but after couple months, believe it or not, I was able to shave 25 strokes. Not only the long game improved but the short game (which is really what makes you score low) has been boosted up, the ball now goes (almost all the time!!) where I want, with the precision I desire, and my scores are lowering further. Your clubs helped me feel more confident on the golf course, and now I can control the direction of the ball much better and much easier, and when I don't it's almost always because I'm in a hurry and forget to aim like you suggest. Thank you again, and I will definitely suggest your clubs to everybody because they are really wonderful, and the customer care service is incredibly fast and efficient.

- Francesco M
I am very pleased with the putter and the service you guys gave me. Thank you for all that you have done and I will be sure to tell all my friends about you.

- Jerry Wilkerson
Just wanted to thank you for getting my recent order out to me SUPER FAST. Your customer service is tops!

- Scott Pickens
Thanks for a great addition to my hybrid set. Your hybrid putter gives me the continuity of clubs and the straight accurate putt I needed without catching the grass. Love your hybrid putter as much as the hybrid set.

- Ann K.