A 4-inch professional quality architects scale with a solid hardwood core, white high-impact plastic laminated faces and tapered edges. Machine engraved graduations and color coded furrows. Supplied in plastic sleeve.
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
Metric Scale: 1:100, 1:200, 1:300, 1:400, 1:500, 1:600