Lufkin's "Red End" engineers folding ruler is ideal for carpenters and other professional craftsmen. Constructed of boxwood, 25% thicker than competitive wooden rules, with black markings embedded in a white background protected by a clear abrasive-resistant coating. Strong lock joints eliminate end-play and retain accuracy. Brass-plated end caps and strike plates. Double graduations on both edges and sides. Graduated in feet to 1/10 and 1/100 of a foot with regular outside markings in feet and inches to 1/16". Lufkin #1066D.