Alvin P600C 600 Series 6 inch Plastic Engineer Triangular Scale Set

High-quality scales made from high-impact plastic with white, non-reflecting, matte faces and tapered edges. Printed graduations and color-coded furrows. Set of two, one architect and one engineer. All architect scales have the following graduations unless otherwise noted: 3/32, 3/16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 11/2, 3" to the foot; one edge to 16ths. All engineer scales have the following graduations unless otherwise noted: 10, 20, 30, 40, 50, 60 parts to the inch.