Starrett ASE-48 Anodized Aluminum Straight Edge Rule, 48" Length, 2" Width Designed to meet the general-utility measuring needs of schools and shops, woodworkers, tinsmiths, metal workers, and bench applications They lie flat, resist bending and feature large, easy-to-read graduations and numbers that are heavier than conventional machine-graduated scales Rules are graduations reading 1/8" on one edge, 1/16" on the other