Alumicolor Standard T-Squares are made from the highest quality tempered extruded aluminum. The blades are aluminum and the heads are made from ABS plastic. The 1-1/2" wide blade is calibrated in inches divided into 16ths on one side; the opposite side is calibrated in centimeters divided into millimeters. Calibrations are resistant to cleaners and solvents.Available in 12", 18", 24" and 36"
