HIGH QUALITY: This valve adjusting tool is made of manganese steel, a hard and wear-resistant material that is durable and resistant to deformation, designed for long-term use. ACCURATE MEASUREMENT: The thickness gauge includes precision-made steel blades of various sizes, each crafted for accurate thickness measurement. It allows for precise gap measurement under various conditions, enhancing the accuracy of your work. CLEAR LABELING: Each blade is clearly marked with measurement data that is easy to read and resistant to wear, enabling quick identification and reducing errors for improved efficiency. WIDELY USED: These feeler gauges are suitable for a variety of applications, including automotive parts, valve clearances, cutting edge gaps, musical instruments, and electric motors. Ideal for measuring the distance between two surfaces or components with precision. CONVENIENT TO CARRY: Designed with a foldable structure, the gauge is compact and lightweight when closed. It can be easily carried in a pocket or attached to a keychain, helping prevent loss. SPECIFICATIONS: Material: Manganese Steel 32-Blade Feeler Gauge – Imperial sizes (inches): 0.0015, 0.002, 0.0025, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.010, 0.010, 0.011, 0.012, 0.013, 0.0145, 0.0145, 0.0145, 0.018, 0.019, 0.020, 0.021, 0.022, 0.023, 0.024, 0.025, 0.026, 0.028, 0.030, 0.032, 0.035 Metric sizes (mm): 0.04, 0.05, 0.06, 0.08, 0.10, 0.13, 0.15, 0.18, 0.20, 0.23, 0.25, 0.25, 0.28, 0.30, 0.33, 0.35, 0.38, 0.40, 0.43, 0.45, 0.48, 0.50, 0.53, 0.55, 0.58, 0.60, 0.63, 0.65, 0.70, 0.75, 0.80, 0.88 16-Blade Feeler Gauge – Metric sizes (mm): 0.127, 0.152, 0.178, 0.203, 0.229, 0.254, 0.279, 0.305, 0.330, 0.356, 0.381, 0.406, 0.432, 0.457, 0.483, 0.508 PACKAGE INCLUDES: 1 x 32-Blade Feeler Gauge 1 x 16-Blade Feeler Gauge NOTE: Not suitable for children under 3 years old. After use, apply lubricating oil to help prevent rust and extend product life.