Architecture Plastic Tri Scale 12 inch

Plastic Professional Triangular ScalesProfessional quality scales made from high-impact plastic with white, non-reflecting dull-matte faces and tapered edges. machine-engraved graduations and color-coded furrows. Supplied in hard plastic case.All architects scales have the following graduations : 3/32, 3/16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 1-1/2, 3" to the foot; one edge graduated to 16ths.All engineers scales have the following graduations unless otherwise noted: 10, 20, 30, 40, 50, 60 parts to the inch.