ABN 32 Piece Blade Master Feeler Gauge Measurement Tool Practical: Use the ABN Universal SAE and Metric Master Feeler Gauge 32-Piece Blade Tool for Measuring Gap Width / Thickness when you need to quickly and easily measure gap widths Versatile: Use on anything from guitars to engines and everything in between; Metric and SAE standard sizes are included (millimeters and inches) Durable: Constructed from hardened tempered steel with a lube oil coating to prevent pitting and corrosion; Each blade has sizes laser etched for easy identification; Blades are bound within a blade protector to prevent loss of individual blades; Tool contains a blade notch for easy blade removal The set includes metric sizes: .04, .05, .06, .08, .10, .13, .15, .18, .20, .23, .25, .28, .30, .33, .35, .38, .40, .43, .45, .48, .50, .53, .55, .58, .60, .63, .65, .70, .75, .80, .88mm The set includes inch sizes: .0015, .002, .0025, .004, .005, .006, .007, .008, .009, .010, .011, .012, .013, .014, .0.15, .016, .017, .018, .019, .020, .021, .022, .023, .024, .025, .026, .028, .030, and, .035.