Made from 1/2″ wide, C1095 close grain, high carbon spring steel. Never worry about conversion tables again with these True Metric thicknesses. Used as shim stock to fill gaps and spaces in dies and machinery, can be used for short runs or prototype work. Thickness is clearly marked every 6″. Measures 12.7mm wide by 305mm long by 0.04mm thick. Precision Brand® Feeler Gage is used in manufacturing and maintenance operations wherever setting close spacing or checking extremely tight tolerances is required.25 feet long x 1/2″ wide.001″ to .023″ coils are conveniently packaged in dispenser boxesEasily cut to desired lengthPRECISION BRAND brings you “true” metric feeler gage Made of C1095 close grain, high carbon spring steelEach blade is clearly etched with thickness Feeler Gage stock is packaged in 127mm or 305mm flat lengths, 7.6M coils and in a convenient assortment