Lately, I've been studying a lot about Gillette "One-Piece Razors". I'm actually redacting an illustrated handbook detailing the many variants inside the same model through the years.
There is a data that puzzles me: blade gaps. The measurements I've found online seem to be all over the place. I have no way of measuring them as I don't own many of the models. Also, as stated on Razor Emporium page, ideally the measurements should be taken on NOS razors as you'll never know what could have happened to a 70 years old used one.
I generally stick to the shave-wiki chart but even there I see some incongruences.
Let start with a table regarding Gillette adjustables: the numbers are expressed in inches, where "22" stands to 0.022 inches.
Dial position No. 5 on Fatboys and Slims was set by Gillette at 0.032 inches or 0.81mm by the metric system.
(This has been already discussed in the past, see Gillette Adjustable (Slim/Fat Boy) Blade Gaps)
Now, how do those raw numbers compare? I compiled another table based on the measurement on the shave-wiki:
This leads me to a degree of confusion. If modern razors' blade gaps are set following a metric system, a Razorock GC .68 is set at .68mm and a Rockwell plate#5 is set at .69mm. Clear as water!
But Gillette razors were set using the imperial system and the measurements found online are all over the place. I mean, they should follow a progression if converted to metric, even if we consider other steps:
0,015= .38mm
0.020= .51mm
0.025= .63,5mm
0.030= .76mm
No Gillettes, apart from the Red tips (US & UK), follow this progression.
Talking about those wonderful little beasts: users compare the shave they get from a 1955-1959 Super-Speed Red Tip to a Fatboy set at 6 or 7. That would be in the .90-.95mm range If we take for granted online measurements the Red tip has a blade gap of .66mm!!!
Now I know that blade gap is just one part of the equation when we consider the "aggressivity" of a razor. Head geometry, blade exposure are other parameters that come to mind. I mean, a Muhle R89 has five times the blade gap of a Fatip Piccolo!
But the Fatboy and the Red Tip shared the same Gillette 1955-1961 "higher profiled head". Same silo doors curvature, same safety bar, same blade exposure. By the mere blade gap the Red tip should feel like a Fatboy set at 3! Is there any red magick involved?
There is a data that puzzles me: blade gaps. The measurements I've found online seem to be all over the place. I have no way of measuring them as I don't own many of the models. Also, as stated on Razor Emporium page, ideally the measurements should be taken on NOS razors as you'll never know what could have happened to a 70 years old used one.
I generally stick to the shave-wiki chart but even there I see some incongruences.
Let start with a table regarding Gillette adjustables: the numbers are expressed in inches, where "22" stands to 0.022 inches.
Dial position No. 5 on Fatboys and Slims was set by Gillette at 0.032 inches or 0.81mm by the metric system.
(This has been already discussed in the past, see Gillette Adjustable (Slim/Fat Boy) Blade Gaps)
Now, how do those raw numbers compare? I compiled another table based on the measurement on the shave-wiki:
This leads me to a degree of confusion. If modern razors' blade gaps are set following a metric system, a Razorock GC .68 is set at .68mm and a Rockwell plate#5 is set at .69mm. Clear as water!
But Gillette razors were set using the imperial system and the measurements found online are all over the place. I mean, they should follow a progression if converted to metric, even if we consider other steps:
0,015= .38mm
0.020= .51mm
0.025= .63,5mm
0.030= .76mm
No Gillettes, apart from the Red tips (US & UK), follow this progression.
Talking about those wonderful little beasts: users compare the shave they get from a 1955-1959 Super-Speed Red Tip to a Fatboy set at 6 or 7. That would be in the .90-.95mm range If we take for granted online measurements the Red tip has a blade gap of .66mm!!!
Now I know that blade gap is just one part of the equation when we consider the "aggressivity" of a razor. Head geometry, blade exposure are other parameters that come to mind. I mean, a Muhle R89 has five times the blade gap of a Fatip Piccolo!
But the Fatboy and the Red Tip shared the same Gillette 1955-1961 "higher profiled head". Same silo doors curvature, same safety bar, same blade exposure. By the mere blade gap the Red tip should feel like a Fatboy set at 3! Is there any red magick involved?