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17 to 18° over here rather.
Old ones. Even the ones with heavy hone wear have more than 17°
That won't make the angle steeper.
Must admit that I don't have verniers calipers, so its not 100%...

15° seems very rare in my fundus.

Oh I see, thank you.

Now is there a way to adjust the spreadsheet to german tape thickness?

LOL ok, 8 sounded a bit thin anyway.
What benchmark does the industry set - with DE blades - for the angle?
Usually they max things out and play them safe.

The sheet seems pretty useful in...

Glen how big would you say the range of working angles for shaving could be?