From ShaveWiki
Aggression - Ranking by blade gap size
Note there are factors, other than the blade gap size, that might make a razor seem more or less aggressive.
The following, while based on a single simple measurement, will hopefully agree with most of the impressions of the shaving community.
The easiest way to measure the blade gap is with a feeler gauge.
How to do it is described here ...
http://badgerandblade.com/vb/showthread.php?p=592727#post592727
GAP in 1/1000's of an inch [ +/- .001 inch ]
List order: Smallest gap size (mildest) to larger (more aggressive)
Blade gaps, ranked by gap size
| thousandths of an inch | millimeters | Razor
|
| 17 | .43mm | Gillette Adj Black handle @ 1
|
| 18 | .46mm |
|
| 19 | .48mm |
|
| 20 | .51mm | Ming Sui
|
| | | Gillette Rocket (UK)
|
| 21 | .53mm | Gem Micromatic
|
| | | Gillette New Improved Tuckaway
|
| | | Schick Krona
|
| 22 | .56mm | Gillette Adjustable @ 1
|
| | | Gillette New Norfolk
|
| | | Gillette TECH
|
| | | Merkur Classic
|
| | | Weishi
|
| 23 | .58mm | Gillette NEW
|
| | | Gillette Super Speed (Blue Tip)
|
| 24 | .61mm | Gem G-Bar
|
| | | Gillette Adjustable @ 2
|
| 25 | .64mm | Gillette Aristocrat (US)
|
| | | Gillette Knack
|
| | | Gillette Ranger Tech
|
| | | Gillette Super Speed (black handle)
|
| | | Gillette Super Speed (late 1940s)
|
| | | Merkur HD (38c)
|
| | | Wilkinson Croma
|
| 26 | .66mm | Bic Disposable (orange handle)
|
| | | Gillette Adjustable @ 3
|
| | | Gillette Aristocrat (UK)
|
| | | Gillette Super Speed Red Tip (US)
|
| 27 | .69mm |
|
| 28 | .71mm |
|
| 29 | .74mm | Gillette Adjustable @ 4
|
| 30 | .76mm |
|
| 31 | .79mm | Feather Portable
|
| 32 | .81mm | Gillette Adjustable @ 5
|
| | | Gillette Super Speed Red Tip (UK)
|
| 33 | .84mm |
|
| 34 | .86mm |
|
| 35 | .89mm | Gillette Adjustable @ 6
|
| 36 | .91mm |
|
| 37 | .94mm |
|
| 38 | .97mm | Gillette Adjustable @ 7
|
| 39 | .99mm |
|
| 40 | 1.02mm |
|
| 41 | 1.04mm | Gillette Adjustable @ 8
|
| | | Gillette Adjustable (black handle) @ 9
|
| 42 | 1.07mm |
|
| 43 | 1.09mm |
|
| 44 | 1.12mm |
|
| 45 | 1.14mm | Gillette Adjustable @ 9
|
Note: Gillette Adjustables
- Slim and Fat Boy range from .022 @ 1 to .045 @ 9
- the Black handle Adjustable ranges from .017 @ 1 to .041 @ 9 or 1 setting smaller than the Slim or Fat Boy
Subjective differences in ranking were limited to +/- .001 measurements
so differences of .001 - .003 can be considered functional equivalent.
