Thread: What is a 1/1 grind razor, an Extra "singing"?

Just wondering on the nomenclature of a 1/1 razor, and if they are considered an Extra Hollow Gound razor? Reason is this link:
Messer der Woche I'm not that good with German. There is also a Revisor 5/8 Extra Hollow I am looking at (for future purchase), and it too, is listed as 1/1 hohl.

1/1 means full hollow. How full you'll have to ask the people who use that notation. I very much doubt it distinguishes between extra hollows and not extra hollows.
So far I haven't found any exact mathematical definition for these.

Originally Posted by gugi

So far I haven't found any exact mathematical definition for these.

I thought the Henckel scale was a mathematical or at least a definition of a hollow's extent. 10 on the scale is extra hollow.

Well, this link: Messer der Woche shows another brand with that same designation. So, it may be more German language, rather than specifically Henckel scale.

And this link shows a Revisor with that same designation in the description, but it actually say's "Extra Hollow Ground" right on the blade. LINK: http://www.revisor-solingen.de/html/5_8_25.html

Every razor on that page seems to be 1/1!

Well, here is a link to MUCH eye candy Raritten Vorschau

These are NOS razors for sale and it might be benfit someone looking for a Solingen razor.
It ought to be worth a thanks..

Originally Posted by Gibbs

Well, this link: Messer der Woche shows another brand with that same designation. So, it may be more German language, rather than specifically Henckel scale.

And this link shows a Revisor with that same designation in the description, but it actually say's "Extra Hollow Ground" right on the blade. LINK: 5/8

I'd suggest to ask them, Thomas is a member here , you can find his posts in the vendor subforum. Shoot him a PM and ask.

Originally Posted by Scipio

I thought the Henckel scale was a mathematical or at least a definition of a hollow's extent. 10 on the scale is extra hollow.

I don't think so. The only thing I've seen about it is profile drawings with corresponding labels in the form of roman numerals. There's nothing that defines a hollowing fraction in terms of the dimensions of the grinding wheels, and the blade width.

Originally Posted by gugi

There's nothing that defines a hollowing fraction in terms of the dimensions of the grinding wheels, and the blade width.

I've measured lots of blades, and if there is a relationship I can't find it either.

Originally Posted by Scipio

Every razor on that page seems to be 1/1!

And now we discover an important truth . . . the proliferation and shave quality of the full hollow.