Razor technical info.

[JamieM]

I know many of us enjoy this side of straight razors I know I do and I always look and measure the small technical details of most razors, maybe we can start a section where we put up technical information that can be a good source regarding vintage razors, and also gives us a nice insight to how they were made.

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Razor Technical Information

Hayashi Diamond 888 13/16 Bevel angle 18 degrees spine thickness 6.5mm

Hoshi Tonbo 6/8 Bevel angle 20 degrees spine thickness 6mm

Eiko YSK-2 13/16 Bevel angle 19 degrees spine thickness 5.6mm

Iwasaki 50 13/16 Bevel angle 19 degrees spine thickness 6.3mm

King Pelican 7/8 Bevel 19 degrees spine thickness 6.3mm

Tanifuji Maxfli Gold 13/16 Bevel angle 21 degrees spine thickness 6.5mm

Kikuboshi A-1 13/16 Bevel angle 21 degrees spine thickness 6.5mm

 

[Shaverrific666]

Good info Jamie!

My girlfriend just looked over my shoulder while I was reading this, rolled her eyes and said "you're not getting a motorbike" !
I think that means I am at liberty to begin purchasing a wide variety of Japanese straight razors...

Ah women work in mysterious ways!

 

[BlacknTan]

Great info Jamie!

We should try to keep this going. I'll take measurements as I go along.

 

[Steve56]

Need to specify the degree of wear; wear will change all of the numbers. Not that this is really significant if you aren’t buying dodgy razors, but it would be valuable to know if the razor is NOS/mint, what the razor specs were when it left the factory.

I’ve done this for a bunch of Filly 14s, will post.

 

[JamieM]

They were all NOS once upon a time, but by taping their edges their geometry has remained constantly accurate down the years, although many of these razors have been re-honed many times in the last 10+ years, I think that puts tape v no tape to bed for me, I don't bother to measure razors with large bevels or hone-ware, it's a pointless exercise it will just tell me something I already know, I just want to highlight and show what the actual technical and accurate measurement of razors from these makers are. I'm trying to highlight and show the connection that most classic quality razors be it French, German, Swedish, British, or Japanese over the last 150 + years have very similar geometry, give or take a small degree of difference.

 

[Zwilling]

They were all NOS once upon a time, but by taping their edges their geometry has remained constantly accurate down the years, although many of these razors have been re-honed many times in the last 10+ years, I think that puts tape v no tape to bed for me, I don't bother to measure razors with large bevels or hone-ware, it's a pointless exercise it will just tell me something I already know, I just want to highlight and show what the actual technical and accurate measurement of razors from these makers are. I'm trying to highlight and show the connection that most classic quality razors be it French, German, Swedish, British, or Japanese over the last 150 + years have very similar geometry, give or take a small degree of difference.

I am now firmly in the tape camp too after reading your comments on this over the years. Kamisori show hone wear very quickly and it radically changes the geometry. I tape them and will probably be able to shave with them and hone them for the remainder of my lifetime.

 

[JamieM]

I am now firmly in the tape camp too after reading your comments on this over the years. Kamisori show hone wear very quickly and it radically changes the geometry. I tape them and will probably be able to shave with them and hone them for the remainder of my lifetime.

Thank you, especially if you hone a Kamisori, no tape on the Emote side will wear very quickly giving you a much larger bevel and that will obviously mean a weaker edge at the apex that doesn't last.

 

[R181]

I have long ago come to the conclusion that the "to tape or not to tape" issue was a tempest in a tea pot. Using tape has never harmed any of my razors I have honed and brought a few back to within factory spec for bevel angle. IIRC, the standard bevel angle spec is +/- 2 degrees of 17 degrees.

Bob