Crescent Lufkin Steel Blacksmith’s Rule 3/4 In. x 2 Ft.
The LUFKIN 86 is a 3/4 In. x 2 Ft. steel blacksmith’s rule, which is used for converting diameters directly to circumferences. The riveted joint has a large side washer and a stop which brings the rule to a firm stop when opened straight. Markings are black and are permanent and deeply etched. Lower edge on one side graduated to 1/16EHS of an inch and other lower edge is 75 circumference inches to 1/8ths of an inch.
3/4″ x 2′, 1/32″ thick, 1-fold, tempered steel rule
This brings rule to a firm stop when opened straight
Riveted joint has large side washer and a stop
Legible, permanent, deeply etched black markings
Lower edge on one side graduated to 1/16th of an inch
Upper edge on other side to 1/8ths
Lower edge 75 circumference inches to 1/8ths
For converting diameters directly to circumference measurements