Dirk Wright asks:

I have a question, what is the angle of the bevel on the iron supposed to
be: 30 or 25 degrees??

There will probably be more opinions on this than there are members on the
porch, but I'll give you mine anyway.

I usually use the following as guidelines:

35 degrees - mortise chisels, heavy use firmers

30 degrees - standard plane blades

25 degrees - standard chisels, final smoothing planes

20 degrees - skew blades

15 - 20 drgrees - paring chisels

As a general rule, the heavier the shaving I need to take with the tool, the
higher the bevel angle I use. Finer shavings require lower bevel angles.

Alan N. Graham

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contained herein, whether real, implied or inferred."

"You pays your money - you takes your choice"

"YMMV"