


Mitutoyo 184-301S | Thickness or Feeler Gauge | Series 184 | Number of Leaves 13 | Blade Length 150 mm| Range 0.05 to 1 mm
The Mitutoyo 184-301S Thickness Feeler Gauge is a precision tool designed for measuring small gaps and clearances in mechanical assemblies. It features 13 stainless steel leaves, each clearly marked with its thickness, and a straight blade measuring 150 mm in length and 13 mm in width. The gauge covers a range from 0.05 mm to 1.0 mm, with leaf thicknesses incrementing by 0.05 mm for the 0.05–0.3 mm range and by 0.1 mm for the 0.4–1.0 mm range. Manufactured to high standards, it offers accuracy tolerances ranging from ±0.003 mm to ±0.01 mm, depending on the leaf thickness. The leaves are detachable, allowing for easy use in confined spaces, and can be individually locked open for convenience. This gauge is ideal for tasks requiring precise gap measurements, such as valve clearance adjustments, spark plug gap settings, and other mechanical inspections.

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Accuracy | 0.03 - 0.15 mm: +/-0.005 mm, 0.2 - 0.5 mm: +/-0.012 mm, 0.55 - 1 mm: +/-0.02 mm |
Inch-Metric | Metric |
Leaf length | 150 mm |
Number of leaves | 13 |
Range | 0.05 - 0.3 mm by 0.05 mm, 0.4 - 1 mm by 0.1 mm |
Series | 184 |
Type | Thickness Feeler Gauge |
Weight | 121 g |
- Wide Measurement Range: Covers thicknesses from 0.05 mm to 1.00 mm, ideal for precise gap and clearance checks.
- 13-Blade Set: Includes 13 individual stainless steel leaves, each marked with its thickness for easy identification.
- Long Blade Design: Each blade is 150 mm in length, allowing access to tight or recessed spaces.
- Durable Construction: Made from hardened stainless steel for excellent wear resistance and long service life.
- Compact & Foldable: Leaves are held in a pivoting steel case, enabling convenient selection, storage, and portability.
- Mitutoyo Quality: Part of Mitutoyo’s trusted Series 184, known for precision and reliability in measurement tools.
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