About the MALCO 48CR 48" CIRCUMFERENCE RULER
The Malco 48Cr is a 48" Circumference Ruler. This 48" circumference ruler has circumference readings for sheet metal work and is contructed of stainless steel that never has to be oild. It's fully etched markings are black-filled for easy reading, and has 150 circumference inches in 1/8" increments on both sides.