Regular Fixed Head T-square Small 320×106 Medium 640×213 Large 1024×340 Download TIFF Original 2400×797 | (110.9 KB) Description A regular fixed head T-square for drawing straight lines. The blade must be perfectly straight in order to draw accurate lines. Keywords Fixed Head Tsquare, Regular Fixed Head T-square, Ruler, rulers, straight edge, t square, t squares, T-square, T-squares, Tsquare, tsquares Galleries Mechanical Drawing Tools Source: French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)
