On Thu, 21 Aug 2003 14:34:27 GMT, Doug Miller wrote:
The best suggestion I have for checking the squareness of a square is to
compare it against a square of known accuracy, one which is certified by its
manufacturer to be accurate to so many thousandths of an inch per whatever
length. Or simply buy such a square in the first place. Starrett makes an
excellent 12" combination square, which can be had for about US$60 if you shop
around some.

Couple more questions:


1) how are the Incra Guaranteed squares as a 'reference' square? Any
others of similar design i.e. reference square that would be worth
investigating?

2) I've heard a bit o' rumbling here and there about the combo square
not being the best choice for a 'trusted' square due mainly to the
moving parts. Any comments in that department?

I've been eyeballing some Starrett equipment to go along w/ some
Mitutuoyo that I have for some other uses (digital calipers and
micrometers). Suggestions on places for the best prices?

Thanks,

nuk

--
I know more than enough *nix to do some very destructive things,
and not nearly enough to do very many useful things.