Thickness Gauges or "Feeler" Stock In RollsHandy 25' and 7. 6 m rolls 1 2" and 12. 7 mm wide, in a compact, sturdy plastic rewindable dispenser case INCH READING ROLLS DISPENSER CASE Rewind feature permits retracting thinner feeler stock into the case, preventing damage Made of the finest tempered steel Marked every 6" or 150 mm with a line, thickness in thousandths of an inch or in hundredths of a mm Thickness: 0. 01" Material: Steel Manufacturer Part Number: 52807 EDP No.: 52807 Length: 25'