Adjustable Head T-square with Ruler
An adjustable T-square to create straight lines at different angles with a ruler attached to the head.
KeywordsRuler, t square, rulers, T-square, T-squares, t squares, Adjustable Head T-square, Adjustable Head T Square
GalleriesMechanical Drawing Tools
French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)