T&E Tools 7011 26 Blade Taper Feeler Gauge Gauges are made from the finest grade steel and are hardened and tempered to withstand long wear All gauges are equipped with knurled lock-nuts. Contains: Twenty-six 3.5/16" x 1/2" tapered to 1/4" (85 x 13mm) blades of the following thicknesses: .0015", .002", .002.5", .003", .004", .005", .006", .007", .008", .009", .010", .011", .012", .013", .014", .015", .016", .017", .018", .019", .020", .021", .022", .023", .024", .025" Length: 3.5/8"(90mm)