PEC Flexible Steel Rule – Model : 501-024 Length: 24″ Review GreedyGangster Rulers September 11, 2018October 5, 2018Linear Measurement, Measuring & Layout Tools, PEC, Tools & Home Improvement 0 Comment This fits your . Make sure this fits by entering your model number. Rules are made of the finest quality steel, hardened and tempered. Satin-chrome finish. › See more product details Made in USA by PEC Tools. 5R graduation shows 32nds, 64ths, 10ths, 100ths.