PEC Tools 12″ 4R Rigid Black Chrome,”high-Contrast” Machinist Ruler with Mark…
Rule is made from spring tempered and hardened steel and is 1.00” wide by. 036” thick. 4R graduations have 1/8” and 1/16” on one side and quick-reading 1/32” and 1/64” on the other. Graduations are precision photo etched and then white filled for easy readability.