Technology

Gravity Drive™ Insert

The Gravity Drive™ Insert uses advanced elasticity principles to generate more consistent putts. Our patented design combines an exotic thermoplastic, polyethersulfone (PES), with precision-milled 303 stainless steel for unmatched performance.

The PES insert is engineered to gradually increase in thickness towards the edges. This unique design adds more kinetic energy on impact, compensating for the distance normally lost on heel or toe strikes.

Material Testing

In a controlled test, a golf ball was dropped from 15 inches above increasing thickness samples of insert material. The images below overlay 10 tests for each thickness, showing the average rebound height. The rebound height was used to calculate rebound velocity and kinetic energy.

Label 0: Steel face (base rebound energy .146J)
Label 1: 1/8'' Thermoplastic/ .147J
Label 2: 1/4'' Thermoplastic/ .148J
Label 3: 3/8'' Thermoplastic/ .149J
Label 4: 1/2'' Thermoplastic/ .151J

Kinetic energy post impact can be seen increasing with insert thickness representing a max energy conservation of 3% when compared to initial impact speed.

How Does This Help?

When a putt strikes the heel or toe of a traditional putter, the ball won’t travel as far. This happens because the ball moves away from the center of mass, causing the putter head to twist and reducing ball speed. With a sweet spot about the size of a quarter, these mishits are easy to make but hard to overcome.

Gravity Drive™ Technology, expands the sweet spot across the entire insert by adding kinetic energy to the heel and toe of the club face. By redistributing energy towards the heel and toe, we generate consistent roll distances, even on off-center strikes. The result? More consistent putts and fewer surprises on the greens.

What Does This Mean on the Green?

Our insert is designed to remove inconsistencies when putting from 15-20 feet—the critical range for birdies and par saves.

Real-World Impact

A tour pro will miss roughly 4-5 putts from 15 feet. However, they are much more likely to be in "gimmie" range for the following putt. This is the key to avoiding 3-putts. Our high MOI designs paired with the Gravity Drive insert helps heel and toe hits roll out the intended distance. This gives poor strikes a chance and it prevents the golfer from overcompensating and hitting the ball too hard on follow up putts.

Closer misses are key. PGA putts made from 3 feet, 99%. PGA putts made from 6 feet, 70%. Lag putting is crucial.

By precision milling the PES insert to increase thickness toward the edges, we create uniform roll distances across the entire striking area.

Our insert is designed to remove inconsistencies when putting from 15-20 feet—the critical range for birdies and par saves.

Real-World Impact

A tour pro will miss roughly 4-5 putts from 15 feet. However, they are much more likely to be in "gimmie" range for the following putt. This is the key to avoiding 3-putts. Our high MOI designs paired with the Gravity Drive insert helps heel and toe hits roll out the intended distance. This gives poor strikes a chance and it prevents the golfer from overcompensating and hitting the ball too hard on follow up putts.

Closer misses are key. PGA putts made from 3 feet, 99%. PGA putts made from 6 feet, 70%. Lag putting is crucial.

By precision milling the PES insert to increase thickness toward the edges, we create uniform roll distances across the entire striking area.

Maximum MOI for Ultimate Forgiveness

Our putters feature up to 170 grams of tungsten precision-assembled in a machine-milled aluminum chassis. This combination is engineered to deliver maximum MOI (moment of inertia)—a critical factor in maintaining stability and accuracy.

What is MOI?

MOI measures an object’s resistance to twisting. When a ball is struck off-center, the putter tends to twist in your hands, reducing accuracy and roll distance. By strategically adding weight to the heel and toe, we significantly increase the putter’s resistance to twisting, minimizing the negative effects of mishits.

Innovative Design

Using lightweight billet aluminum allows us to position up to 50% of the putter’s weight toward the perimeter, maximizing MOI without compromising balance. Paired with the Gravity Drive™ Insert, this
design creates one of the most forgiving putters on the market.

Proudly Made in the USA

Every Void Putter is CNC-milled, hand-finished, and assembled with care in San Diego, California.

1. Tungsten Perimeter Weighting

Strategically placed tungsten weighting maximizes MOI for a consistent, balanced stroke.

2. Gravity Drive™ Insert

Patented technology delivers a soft yet responsive feel, ensuring consistent distance control, even on off-center strikes.

3. Hosel Options

Optimize your stroke with toe-hang and face-balanced hosel options designed for both arcing and straight strokes.

4. Precision Construction, Premium Finish

CNC-milled 6061 aluminum body, featuring Cerakote coating for industry-leading durability and a premium finish.

Watch our swing arm test to see the Gravity Drive™ Insert in action. Experience how it delivers consistent results across the entire face of the putter.

Configure your custom Void Putter today and experience the difference of Gravity Drive™ Technology.

Build Yours Now

Frequently Asked Questions

What's the difference between Heal-Shafted and Center-Shafted?

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The most obvious difference is physical: a heel-shafted putter connects the shaft at the heel of the club head, the traditional hosel placement found on most putters, while center-shafted putters mount the shaft in the center of the head.

Heel-Shafted Putters: The classic setup most golfers are familiar with. The shaft connects at the heel, giving the club a traditional look and feel at address. For players who prefer a conventional setup without adjusting to a center-shafted configuration, heel-shafted putters feel immediately natural and intuitive.

Center-Shafted Putters: Our Centerfire designs align the shaft axis directly through the putter's true center of gravity, eliminating the natural "hang" or bias found in other putters. When balanced, the head stays exactly in the orientation you set. This creates a natural pendulum swing, assisting in straight-back and straight-through strokes and eliminating the potential for arcing or twisting through your stroke.

How do I choose the right putter length?

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The easiest way to choose the right putter length is based on your height, which works for most golfers:

If you’re taller than 6 feet, a 35-inch putter will usually fit best.
If you’re shorter than 5'6", a 33-inch putter is likely the better option.
For most golfers in between, a 34-inch putter is a great middle ground.

This simple approach will work well for most people. However, if you want to get more precise, consider your posture and putting style:

The ideal length lets you stand comfortably with your eyes over the ball, with your arms hanging naturally.
The right length should also suit your stroke type—whether you prefer a straight-back, straight-through stroke or a slight arc.

If you're still unsure, a professional putter fitting can help you determine the perfect length for your unique setup.

Where can I go to test a Void Putter?

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At the moment, Void Putters are not available in any physical retail locations, but we are aiming to begin distribution soon. For now, the best way to try a Void Putter is to purchase it and take advantage of our 30-day trial period. If you’re not completely satisfied, you can return it for a full refund.

For more details, please visit our Returns/Refund Policy page.

Can I customize the loft or lie angle of my Void Putter?

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Absolutely! We can adjust the loft or lie angle to your specifications. Leave your preferences in the order notes when you place your order, and we'll take care of it.

Note: Our Centerfire line cannot be bent like our plumbers-neck putters. The lie angle is machined directly into the micro-hosel, so we can only offer the following options: 68°, 70°, 72°, 74°, and 78°

The loft comes standard at 2° and is non-adjustable.

Can I get an arm-lock or broomstick grip on my Void Putter?

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Yes. We can build your putter for either arm-lock or broomstick setups. Simply select a shaft option designed for longer builds (True Temper XL Silver or BGT Stability Tour Long), choose the Aftermarket Grip option, and include your preferred grip and loft/lie specs in the order notes.

What is the lead time? When can I expect my putter?

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Our lead time for putters is typically 2-3 weeks from the time of order. Please note that this lead time is an estimate, and there are several factors that can affect it. If you would like a more precise estimate of our current lead time, feel free to reach out to us directly.

You will receive an email when your putter moves to final assembly, which will include your tracking information. Please allow some time before expecting tracking updates, as our club builder will need to assemble your putter before it ships.

We appreciate your patience while we ensure your putter meets the highest quality standards.

How can I track my order?

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You can track your order by logging into your account. Alternatively, the email you used at checkout will receive a tracking link once your club moves from machining and paint to final assembly.

Please allow our builders some time to complete assembly and packaging after that email is sent. You should see the first tracking update 2–8 days after receiving it.