Gillette Adjustable Razor Manufacturing Date Codes 1955 - 1988

NDC






Bottom Dial(N&B-5P)








A
1955
Serial Toggle(N&G)














B
1956















C
1957















D
1958

Fatboy
Exec FB
Red Dot FB
 Std Toggle










E
1959

Fatboy
Exec FB












F
1960

Fatboy
Exec FB
Red Dot FB
Std Toggle
Chrome Tog(N&G)

Bottom Dial(9P)







G
1961

Fatboy
Exec FB





Slim
Arist Slim





H
1962








Slim
Arist Slim





I
1963








Slim
Arist Slim





J
1964








Slim
Arist Slim





K
1965








Slim
Arist Slim





L
1966








Slim
Arist Slim





M
1967








Slim
Arist Slim





N
1968








Slim

Super-84




O
1969










Super-84
SA-Gold
Super-109


P
1970










Super-84
SA-Gold
Super-109


Q
1971












Super-109


R
1971










Super-84

Super-109


S
1972










Super-84

Super-109


T
1973










Super-84

Super-109


U
1974










Super-84

Super-109


V
1975










Super-84

Super-109


W
1976












Super-109


X
1977













SA Blk Vert

Y
1978













SA Blk Vert

Z
1979













SA Blk Vert

A
1980













SA Blk Vert
SA Blk Diam
B
1981













SA Blk Vert
SA Blk Diam
C
1982














SA Blk Diam
D
1983














SA Blk Diam
E
1984














SA Blk Diam
F
1985














SA Blk Diam
G
1986














SA Blk Diam
H
1987














SA Blk Diam
I
1988














SA Blk Diam


How to use this Blade Gap Table:


1) Finding an equivalent gap on another adjustable razor type.


For example, If you have a Standard Fatboy razor and shave with it at a "7" and want to know how another Gillette Adjustable will behave, simply look at the column for the other razor and match up the gap numbers. So, a Standard Fatboy at "7" is a ".033". That is roughly equivalent to a Standard Toggle at a "5" (".032"). 


2) Finding if an adjustable razor type is not aggressive enough or too aggressive.


For example, if you have tried Slim at "9" and it is just not provide a close enough shave, look at the blade gap amount for the Slim at "9". It is ".039". Now, find another adjustable razor type that has a higher gap amout than ".039". The "Super-84" fits the bill. It is a ".045". So, a "Black Beauty"  will give you more range. A Super Adjustable at "9" is like a Fatboy at  "12" or "13" (if there was such a thing).


Also note Gillette has designed each and every one of the razors to provide about a ".003" difference from one setting to the next. That is the difference between a razor at any given setting and the setting above or below it will be about ".003". This is true for all of the Gillette Adjustable models.If you don't exactly see that in the Blade Gap Table, it is due to a slight measurement error. For those who care, the average standard deviation is .0072" so considering the "Average Razor" and an average +/- 1 STDev as a significance threshold, only the Bottom Dials are significantly different than the rest of the adjustables.

A Feeler gauge was used to measure "Blade Gap" on various types of "new" Gillette Adjustable razors. Important differences between types of razors were found.

Blade Gap Sizes By Adjustable Razor Type and Position

Sorted Left to Right - Mildest to Most Aggressive

Adjustment Dial

Position

Bottom Dial

1-5

Serial

Toggle

Executive

Fatboy

Chrome

Toggle

Aristocrat

Slim

Average

Adjustable

Red Dot

Fatboy

Super-84

Toggle

Bottom Dial

1-9

1
.008
.012
.011
.011
.014
.014
.015
.016
.019
.018
.021
.037
2
.011
.013
.015
.015
.019
.016
.017
.020
.022
.024
.025
.040
3
.013
.019
.019
.017
.021
.020
.022
.023
.025
.026
.027
.043
4
.016
.020
.022
.019
.024
.025
.025
.026
.029
.028
.031
.046
5
.020
.023
.025
.025
.026
.026
.027
.029
.032
.031
.032
.048
6
.023
.027
.027
.030
.028
.031
.030
.032
.035
.035
.036
.050
7
.026
.030
.030
.033
.031
.033
.034
.035
.038
.038
.039
.053
8
.030
.032
.034
.035
.034
.035
.036
.038
.041
.042
.041
.056
9
    .034   
.034
.038
.037
.037
,039
.039
.041
.044
.045
.043
.059


(Measurements are in inches - Table Updated 4-14-17).

See how "Blade Gap" changes based on Adjustment Dial position. A higher dial setting equals more Blade Gap equals greater blade Exposure equals closer shave.

How will your shave differ depending on the Adjustable Razor Type you choose?


Use the following Blade Gap Sizes Chart. It will help you "guesstimate" which type of Gillette Adjustable razor will shave you better. My takeaways and conclusions are as follows:

1) The Standard Slim (or the Aristocrat Slim)*is closest razor to the "Average" adjustable razor.

2) The Bottom Dial 1-5 Prototype was the mildest of the bunch.

3) The most aggressive commonly available adjustable razor is the "Black Beauty".

4) The Bottom Dial 1-9 was the most aggressive of the bunch.

5) All the adjustable razors are great!

6) Fatboys are cool!

7) Everyone should try a vintage Gillette Adjustable razor.


 * Standard Slims are built using the same physical parts as the Aristocrat Slim - only the plating metal (nickel or gold) is different.

Gillette Adjustable Razors by Glenn Conti

A Reference Resource and Historical Archive.

Gillette Adjustable Razors

"Blade Gap" is the dimension in red on this Gillette diagram.

See the following chart for reference to discover how a normal distribution of customers in a population will behave.

The Adjustable Razor is Universal!

Legend:


NDC - No Date Code Prototype

N&G - Nickel Plated and Gold Plated Versions

N&B - Nickel Plated Dial and Black Painted Dial Versions

Exec - Executive

FB - Fatboy

Std - Standard

5P- 5 Position Maximum Adjuster Dial

9P - 9 Position Maximum Adjuster Dial

Arist - Aristocrat

SA - Super Adjustable

Blk - Black Plastic Bottom Plate

Vert - Vertical Knurling Handle

Diam - Diamond Knurling Handle

The following is a graphic from an internal Gillette marketing document in the 1950's showing how the range of settings of the adjustable razor satisfies the shaving desires of 99.7% of all consumers. Also, the average consumer will prefer a setting of "5" and 68% of all consumers will be satisfied with an adjustable between the settings of "4" and "6". The marketing document went on to explain how a consumer can use the adjustability of the razor to compensate for conditions such as balancing skin comfort versus closeness, shaving different area such as the face and the neck; needing a lighter shave in the evening; getting the best performance out of a new blade; and special face conditions such as sunburn.

Gillette Adjustable Razor Blade Gap By Razor Type