- The Ultimate in Customization
- 4 Weight Ports with 7 Screw Options
- Outstanding Workability
The GF-4 incorporates KZG’s Gravitational Force technology which, with 4 weight ports, gives fitters the ability to fine tune driver performance. These GF ports provide adjustability to optimize ball flight characteristics by customizing center of gravity and spin rates for improved launch conditions that result in increased carry distance.
The 425cc classic pear-shaped design has a very traditional aesthetic and a deep, solid feel that discerning players prefer. This compact design increases workability to shape shots when needed.
The GF 4 can also be set to a very light weight making it a great choice for the junior and the lady golfer.
|RH Loft (Degrees)||9°||10.5°||12°||± 1|
|LH Loft (Degrees)||12°||± 1|
|Lie Angle (Degrees)||58||58||58||± 1|
|Volume (CC)||425||425||425||± 5|
|Weight w/o screws (g)||183||183||183||± 5|
|Weight w/ neutral screws (g)||198||198||198||± 2|
|Roll/Buldge (inches)||10.5/10.5||10.5/10.5||10.5/10.5||± 1|
|Face Angle (Degrees)||0||0.5 C||1 C||± .5|
|Face Height (mm)||52||52||52||± 1|
|Face Width (mm)||90||90||90||± 1|
|Face Material||Ti 6AL-4V|
|Crown Material||Ti 6AL-4V|
|Sole Material||Ti 6AL-4V|
|Face Thickness||2.8 - 2.9mm|
|Hosel Depth (mm)||38 ±1.0|
|Hosel ID (mm)||8.6 ±0.05|
|Hosel OD (mm)||13 ±0.2|
|Screws||GF 4: Head comes in neutral|
|2 @ 1.5 g, 2 @ 6 g = 15 grams|
|Alternate Screws||1.5, 4, 5, 6, 8, 10, 12 grams|
See What Our Clients Are Saying
"For marginal players, this technology will be like the heavens opening up, but even better players will notice the difference right away, as well."
Fairways and Greens Magazine
“I had my son fitted for the GF 4 driver when he had outgrown his little junior set. He is now driving the ball better than he ever has and we are excited to see where he can go with his golf.”
“The GF 4 driver is fantastic for the advancing junior who is too strong to play with junior clubs but still needs a head with less weight. With four weight ports and 7 optional screw weights, it is very easy to fine tune the GF-4 to the players swing, giving them the most clubhead speed while maintaining mass in the head.”
“The GF 4 is the ultimate driver for extreme fitting. The head without screws is only 183 grams. You can add as little as 6 grams or as much as 48 grams to dial in the exact swing weight for any golfer.”