Golf Club Grip Sizing

Gripping or re-gripping a golf club is the number one practiced procedure in clubmaking. However few will go beyond basic installation. Hireko’s Technical Director Jeff Summitt will thoroughly discuss in detail one of the most troublesome aspects of gripping – understanding the grip sizing charts. He will also show some examples of creating in-between sizing and more advanced gripping techniques like building up under the lower hand and why. Whether you are fairly new to clubmaking or a grizzled veteran, this is one Webinar you will not want to miss. This Webinar will last a maximum of one hour with Q & A during the session. Like always, all Hireko’s webinars are free!

1. Grip Sizing
Thursday October 27, 2009
2-3PM Eastern Standard Time
Audio settings are set on listen only.
Please post questions in the upper right hand corner Chat box.
Question & Answer period will be at end of webinar.
www.hirekogolf.com
800 367-8912
with Jeff Summitt
Technical Director, Hireko Golf
PROFESSIONAL GOLF CLUBS AT DOWN TO EARTH PRICES

2. Grip Sizing Webinar Synopsis
xWhy different grip sizes in the first place?
xUnderstanding how to use and read calipers
xUnderstanding the fractions and decimals associated
with grip sizing
xLearning how to read the charts
xBuilding up under the lower hand and why
xSetting up demo grip samples

3. Caliper Reading - Shaft
Measure 2” down to be on the safe side

4. Caliper Reading - Grip
Measure sides of grip 2” down using light pressure

5. PROFESSIONAL GOLF CLUBS AT DOWN TO EARTH PRICES
Sales 800 367-8912
Free Technical Service 800 942-5872
Common Grip Sizes
xJuniors
xLadies
xMen’s
xMidsize
xJumbo

6. Converting Fractions to Decimals
1/32” = 0.031”
Men’s standard = 0.900”
Final size = 0.931”
1/16” = 0.063”
Men’s standard = 0.900”
Final size = 0.963”
0.931”≠ 0.963”

7. PROFESSIONAL GOLF CLUBS AT DOWN TO EARTH PRICES
Sales 800 367-8912
Free Technical Service 800 942-5872
Grip Sizing: 2” Below the Grip Cap
Grip Size Decimal Reading
Ladies -1/32" 0.819”
Ladies -1/64" 0.834”
Ladies Standard 0.850”
Ladies +1/64" 0.866”
Ladies +1/32" 0.881”
Men's -1/32" 0.869”
Men's -1/64" 0.884”
Men's Standard 0.900”
Men's +1/64" 0.916”
Men's +1/32" 0.931”
Men's +3/64" 0.947”
Men's +1/16" 0.962”
Men's +3/32" 0.998”
Men’s +1/8” 1.025”

8. Grip Sizing by Grip Core & Shaft Butt
Grip Shaft Butt Layers of Build-Up Tape Required Core Diameter Standard +1/64” +1/32” +1/16” +1/8” M58 + .580” 0 2 4 9 18 M58 + .600” * 0 2 6 15 M58 + .610” n/p ** 0 4 13 M58 + .620” n/p * ** 3 12 M60 + .580” 3 5 7 12 21 M60 + .600” 0 2 4 9 18
M60 + .610” ** 1 3 7 16
M60 + .620” * 0 2 6 15
L56 + .560” 0 2 4 9 18
L56 + .580” * 0 2 6 15
L56 + .600” n/p * 0 3 12
L58 + .560” 3 5 7 12 21
L58 + .580” 0 2 4 9 18
L58 + .600” * 0 2 6 15
L60 + .560” 5 8 10 14 23
L60 + .580” 3 5 7 12 21
L60 + .600” 0 2 4 9 18
*Grip must be stretched approximately 3/4” longer over its length to reduce the diameter and create this size.
** Grip must be stretched approximately 3/8” longer over its length to reduce the diameter and create this size.
n/p - Not possible to achieve this grip size with stated grip core and shaft butt combination.
NOTE: In all cases it is assumed that a single layer of 2-way grip tape is used, masking thickness = .0035”.

9. Caliper Reading – Masking Tape
Calipers read:
0.607”
Shaft was:
0.600”
Difference is:
0.007” / 2
= 0.0035” our tape thickness

10. Grip Sizing by Grip Core & Shaft Butt
Grip Shaft Butt Layers of Build-Up Tape Required
Core Diameter Standard +1/64” +1/32” +1/16” +1/8”
M58 + .580” 0 2 4 9 18
M58 + .600” * 0 2 6 15
M58 + .610” n/p ** 0 4 13
M58 + .620” n/p * ** 3 12
M60 + .580” 3 5 7 12 21
M60 + .600” 0 2 4 9 18
M60 + .610” ** 1 3 7 16
M60 + .620” * 0 2 6 15
L56 + .560” 0 2 4 9 18
L56 + .580” * 0 2 6 15
L56 + .600” n/p * 0 3 12
L58 + .560” 3 5 7 12 21
L58 + .580” 0 2 4 9 18
L58 + .600” * 0 2 6 15
L60 + .560” 5 8 10 14 23
L60 + .580” 3 5 7 12 21
L60 + .600” 0 2 4 9 18
*Grip must be stretched approximately 3/4” longer over its length to reduce the diameter and create this size.
** Grip must be stretched approximately 3/8” longer over its length to reduce the diameter and create this size.
n/p - Not possible to achieve this grip size with stated grip core and shaft butt combination.
NOTE: In all cases it is assumed that a single layer of 2-way grip tape is used, masking thickness = .0035”.

11. Staggering Build-Up
Layers
Avoid seems or overlaps
Also avoid wrinkles!

12. Not Staggering Build-
Up Layers You might save time by pre-cutting
pieces and layering…
But this will create gaps, seams or
overlaps in the end that could very
well could be felt underneath the
grip.

13. Examples
#1 - Men’s +1/32” with a 0.600” shaft
Grip Shaft Butt Layers of Build-Up Tape Required
Core Diameter Standard +1/64” +1/32” +1/16” +1/8”
M58 + .600” * 0 2 6 15 M60 + .600” 0 2 4 9 18
Or find a Men’s +1/32” version
#2 - Men’s +1/16” with a 0.600” shaft
Grip Shaft Butt Layers of Build-Up Tape Required
Core Diameter Standard +1/64” +1/32” +1/16” +1/8”
M58 + .600” * 0 2 6 15 M60 + .600” 0 2 4 9 18
Or use the midsize version

14. Examples continued
#3 - Men’s -1/64” with a 0.600” shaft
Grip Shaft Butt Layers of Build-Up Tape Required
Core Diameter Standard +1/64” +1/32” +1/16” +1/8”
L56 + .600” n/p * 0 3 12 L58 + .600” * 0 2 6 15 M60 + .600” 0 2 4 9 18
*To create a Men’s -1/64”, the grip must be stretched approximately 3/4” longer over its length to reduce the diameter and
create this size.
#4 - Men’s +1/8” with a 0.600” shaft and a Midsize grip
Grip Shaft Butt Layers of Build-Up Tape Required
Core Diameter Standard +1/64” +1/32” +1/16” +1/8”
M58 + .600” * 0 2 6 15 M60 + .600” 0 2 4 9 18
Or use the jumbo version

15. Shaft’s Rate of Taper

16. Grip Sizing: Positions A & B

17. Grip Sizing: 6” Below the Grip Cap
Grip Size Decimal Reading
Ladies -1/32" 0.699”
Ladies -1/64" 0.714”
Ladies Standard 0.730”
Ladies +1/64" 0.749”
Ladies +1/32" 0.761”
Men's -1/32" 0.749”
Men's -1/64" 0.764”
Men's Standard 0.780”
Men's +1/64" 0.796”
Men's +1/32" 0.811”
Men's +3/64" 0.827”
Men's +1/16" 0.842”
Men's +3/32" 0.878”
Men’s +1/8” 0.905”

18. Staggering Lower Hand Build-Up Layers

19. Demo Grips
xDifferent models to show the various
cosmetics and material differences
xDifferent sizes of the same grip
xAt least one grip showing reduced taper
under lower hand
xLabel everything clearly and use
undersized rather than Ladies
xUpdate demo grips each year and clean or
replace ones that get worn or slick

20. PROFESSIONAL GOLF CLUBS AT DOWN TO EARTH PRICES
THANK YOU FOR ATTENDING!
The webinar will be posted on youtube.com/hirekogolf and on our blog at
blog.hirekogolf.com in just a few hours.
Jeff Summitt,Technical Director
[email protected]
Technical Support 800 942-5872
www.HirekoGolf.com
Sales 800 367-8912