Got curious and measured the thickness of about 30 Stanley planes and the 3
Stanley scraper blades I am sure were intended to go into scrapers.

Almost all plane blades are .075" (give or take a couple of thou either way, and
this is true of #2-#8, regardless of age.  There are an occasional .085 thrown
in there - again regardless of plane size, and there is even a .1 - it has a “V”
logo, pre WW1.  3 Sargents and 3 Milers Fallses (sp?) all had .075.

The 2 #12 scraper blades are .045.  My favorite scraper “plane”, the #80, has a
.045 original

Ed Minch