Matthew,
I have a set of engineering squares made by Groz that are accurate, durable and less expensive than the LVs and do find them great for machine set ups, etc. .... having a range from 2" to 6" blades has turned out to be a good investment because sometimes a square is "too large"
http://www.busybeetools.com/products...-AND-6IN..html
busy bee is in Canada..... Grizzly in the U.S. appears to have the "same" set without naming the brand.... but I would suspect that Groz stuff should be available closer to you.
good luck
michael