White Plastic Triangular Scales

1 Each. Triangular scale is etched with Imperial scale graduations for engineering use. Graduations include 10, 20, 30, 40, 50 and 60 parts per inch. These uniform multiples of 10 allow drawings to be made with distances, loads and other calculations expressed in decimal values. Scale features a color-coded center groove for easy identification. Carry the triangular scale in the included protective plastic case.