Metal FeelER Gauge Set with Polished Hardened Blades - Polished and hardened blades provide long life for repeated use; all-metal construction ensures durability in workshop or field use. - Dual markings for quick identification: metric and SAE sizes clearly labeled for easy cross-reference. - Thick gauge versatility: suitable for a wide range of tasks from guitars to engines and everything in between; includes metric millimeters and inch (SAE) sizes. - FeelER gauge ruler: includes metric and decimal sizes for straightforward identification during setup and measurements. - Note on images: due to lighting effects, monitor brightness, and manual measurement, there may be slight differences between photos and the actual item. Use scenarios - Guitar setup and maintenance: measure string action gaps, nut slot height, and other clearance checks to improve intonation and playability. - Automotive and motorcycle work: verify valve clearances, end gaps, and general thickness tolerances during assembly or maintenance. - Machinery and metalworking: check gaps, shims, bore fits, and alignment where precise thickness measurement is needed.