Professional quality scales made from high-impact plastic with black, non-reflecting dull-matte faces and tapered edges.
Machine-engraved white graduations and color coded furrows. Supplied in hard plastic case.
Architectural Scale: 3/32, 3/16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 1 1/2, 3" to the foot. One edge is graduated to 16ths.
Engineers Scale: 10, 20, 30, 40, 50, 60 parts to the inch