Lang Tools 3275A 26 Blade Offset Feeler Gauge

Contains twenty-six 4in. long x 1/2in. wide blades with thicknesses .005, .006, .007, .008, .009, .010, .011, .012, .013, .014, .015, .016, .017, .018, .019,.020, .021, .022, .023, .024, .025, .026, .027, .028, .029, .030. Made of tempered 1095 spring steel. Equipped with knurled lock-nut, which releases the blades instantly for rapid selection of size desired and when tightened locks the individual blade into the working position, retaining the blades not in use firmly to handle. 4in. long blades have 1in. 45 degree offset for checking valve clearances. The sizes, both decimal and metric equivalent, are permanently etched on each blade.