A [i]T-square[/i] is a technical drawing instrument used primarily by draftsmen as a guide for drawing horizontal lines on a drafting table or to guide a [[set square]] to draw vertical or diagonal lines. Its name comes from its resemblance to the letter [i]T[/i].

h4. See also

* [[Ruler]]
* [[Steel square]]

h4. Externa links

* "Wikipedia - T-square":[https://en.wikipedia.org/wiki/T-square]
t-square