SMT 3391 Iron Description, Specifications & Club Fitting
The SMT 3391 Iron is designed to push game enhancing performance and distance throughout the entire set. By utilizing an ultra-thin (2.3 mm-2.9 mm) 17-4 stainless steel face, every iron is pushed to the highest COR. The TPE inserts enhance feel and sound while removing unwanted vibrations. The ultra-low center of gravity placement provides for the perfect mid/high trajectory and optimal spin rate throughout the entire set. The SMT 3391 provides players with the technology to play their best golf!
Key Features:
- Designed For Game Improvement. Longer. Higher. Straighter.
- Multi-Material Construction Allows for Ultra-Thin & Multi-Thickness Face for Improved Ball Speed and Feel.
- Deep-Low Center of Gravity For Improved Playability and Launch Angle.
- Dual TPE Rear Inserts Helps to Reduce Unwanted Vibration & Improves Feel.
- Dual Rear Weights Enhance MOI and Helps Improve Accuracy.
- Brush Finish Reduces Unwanted Glare.
- Head Material: 17-4 Stainless Steel
Specifications
Loft |
Lie |
Length (Steel) |
Length (Graphite) |
20.5°(4) |
61° |
38.5" |
39" |
23°(5) |
61.75° |
38" |
38.5" |
26°(6) |
62.5° |
37.5" |
38" |
29.5°(7) |
63° |
37" |
37.5" |
33.5°(8) |
63.5° |
36.5" |
37" |
38°(9) |
64° |
36" |
36.5" |
43°(PW) |
64.5° |
35.5" |
36" |
48.5°(AW) |
64.5° |
35.5" |
36" |
54° (SW) |
64.5° |
35.25" |
35.75 |
Club Fitting
Club Length
Stand on flat surface and place your arms in a relaxed position by your sides. Measure from the wrist crease to the floor (as shown in the image).
WRIST TO FLOOR MEASUREMENT FOR INITIAL CLUB LENGTHS
Wrist to Floor Measurement |
4-Iron Length (Steel Shaft)
|
27" - 29" |
- 1 1/2" |
29" - 32" |
- 1" |
32" - 34" |
- 1/2" |
34" - 36" |
38 1/2" (Standard) |
36" - 37" |
+ 1/4" |
37" - 38" |
+ 1/2" |
38" - 39" |
+ 3/4" |
39" - 40" |
+ 1" |
40" - 41" |
+ 1 1/4" |
41"+ |
+ 1 1/4" |
Grip Size
Measure Hand (as shown in picture) before selecting the correct grip size
Shaft Flex
Normal 7-Iron Distance
How Far Do Golfers Really Hit a 7-Iron
Male amateurs who play to a 30 handicap average 7-iron shots of 115 yards; those who play to a 20 handicap average 130 yards; those who play to 10 handicap average 145 yards; scratch amateurs average 160 yards; Tour professionals average 180 yards. So, be realistic.
Backswing Length
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Hands Shoulder Height or Lower
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Hands Higher Than Shoulders
Wrist Cock Release Point on Downswing

1. Early Release means the downswing to the ball is started with the hands. Generally done by beginners or higher scoring players who score 90 +.
2. Midway Release means the downswing to the ball is started with some body movement before the hands start to uncock. Generally done by Intermediate Players who score 82 - 89.
3. Late Release means the downswing to the ball is started by weight shift in the legs, followed by the trunk of the body and finally the hands uncocking very near impact with the ball. Always done by advanced players who score 70 - 79.
To assist our club fitting, email a video of your swing.
1. Using your phone or tablet, have a friend video your swing. Do at least 2 swings with one facing directly at you and the other from behind looking straight down the line of flight.
2. Attach the video to an email and send HERE
3. We will analyze your swing and send our recommendations for club specifications.