Stanley STMT78212-8 0.04 to 1mm Combination Feeler Gauge

The set includes 25 blades in the following sizes: 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.60, 0.70, and 1.00 mm.

The blades are carbon steel that are ground, hardened, and tempered for accuracy and longevity. They’re protected with rust-preventing oil to resist corrosion, and the handle is designed for a comfortable grip with a finger concave shape. The surface is bright zinc-plated for added corrosion resistance.

Yes. The gauge is designed for versatile use with metric measurements (millimeters) and accompanying imperial references to support both measurement systems.

1) Clean the gap. 2) Select the blade that fits the gap with a light drag. 3) Insert the blade into the gap and apply gentle, even pressure. 4) Read the closest size that fits and note the measurement. The ergonomic handle makes one-handed operation easy.

Use it for automotive engine tolerances (valve clearances, bearing fits), machinery setup, precision engineering, collets and tool alignment, and general gap wear checking on both internal and external surfaces.

Store it in its protective pouch or a dedicated tool container to shield it from dirt and moisture. Use the hang hole to keep it accessible, and lightly oil blades after use to prevent rust. Wipe blades clean before returning to storage.

Handle blades with care to avoid cuts or bending. Apply only light, even pressure when testing gaps to prevent deforming blades. Keep blades away from skin and children, and store safely after use.

If you’re exploring options on Fepy, you can browse similar feeler gauges here: 1) https://fepy.com/search?q=feeler%20gauge 2) https://fepy.com/search?q=combination%20feeler%20gauge 3) https://fepy.com/collections/feeler-gauge

The set includes the 25 blades, rust-preventing oil coating on the blades, a protective pouch for storage, and a hang hole for easy hanging and organization.

It combines a durable drop-forged steel construction with corrosion resistance, a complete 0.04–1.00 mm range across 25 precise blades, and an ergonomic design for one-handed operation—delivering accuracy, longevity, and ease of use at a reasonable price.

Yes. The hardened and tempered carbon steel blades, along with the corrosion-resistant finish and ergonomic handle, make it reliable for professional machining, automotive work, and precise hobby projects alike.