Precision Brand 19740 Steel Thickness Feeler Gage Poc-Kit Assortment, 1/2" Width, 5" Length, 20 Blades Contains 1 of each thickness: 0.001", 0.0015", 0.002", 0.003", 0.004", 0.005", 0.006", 0.007", 0.008", 0.009", 0.010", 0.012", 0.014", 0.015", 0.016", 0.018", 0.020", 0.022", 0.024", and 0.025" Made from 1/2" wide C1095 close grain, high carbon spring steel Packaged in a sturdy, vinyl case with individual blade pockets that conveniently folds flat Each blade is clearly etched with thickness in metric and decimal Ends are rounded and edges are smooth for safety