Helix Professional Architects Triangular Scale
Helix HLX13372 – Triangular scale is designed for professional architects with three color-coded, rubber, center strips for easy identification of scales. Scale is divided in three with 1-1/2″, 1″, 3/4″, 3/8″, 3/16″, 3/32″, 1/2″, 1/4″, and 1/8″ markings per foot. 18″ triangular scale is made of aircraft-grade aluminum..