In rec.woodworking
"Michael Daly" wrote:

Of
course I live in Athol, Ma., the home of Starrett, so I wouldn't use anything
else, plus, I get my tools at a very reduced rate

Dumpster diving for tools! It might be 89.87 degrees, but it's _exactly_
89.87 degrees!

Just for fun, I calculated the error on a square that was 89.87.

On 3', the error is 5/64" and at 8' is 7/32"