17-Blade Metric Feeler Gauge 0.02–1mm | Engine Valve Tool

Precision Gap Measurement for Engine Valve Adjustment & More

Whether you're a seasoned mechanic or a dedicated DIYer, the 17-Blade Metric Feeler Gauge Set gives you the precision you need to get the job done right. Covering a measurement range of 0.02mm to 1.00mm, this compact and durable tool is perfect for engine valve clearance checks, spark plug gap settings, carburettor adjustments, and general metalworking tasks.

The blades are clearly marked with their metric measurements, making it fast and easy to select the correct thickness every time. The sturdy pivot rivet keeps all 17 blades neatly stored and accessible, while the robust housing protects them when not in use.

Made in Mainland China.

Key Features

• 17 precision blades ranging from 0.02mm to 1.00mm for versatile gap measurement
• Clearly etched metric markings on every blade for quick, accurate identification
• High-quality steel blades for durability and resistance to bending or warping
• Compact folding design – all blades pivot neatly into the protective case for easy storage and portability
• Ideal for engine valve adjustment, spark plug gapping, carburettor tuning, and precision machining
• No battery required – simple, reliable mechanical measurement every time
• Suitable for both professional workshops and home garages

Blade Specifications

• Number of Blades: 17
• Measurement Range: 0.02mm – 1.00mm
• Measurement System: Metric
• Material: High-carbon steel
• Battery Required: No

Common Uses

• Engine valve clearance and tappet adjustment
• Spark plug gap measurement
• Carburettor and fuel system gap checks
• Machining and precision metalwork
• HVAC equipment gap inspection

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Safety & Standards

For guidance on safe workshop tool practices, refer to the OSHA Hand & Power Tools Safety Guidelines to ensure you are working safely with hand measurement tools.

Frequently Asked Questions

Q: What is a feeler gauge and how does a 17-blade metric feeler gauge work?

A: A feeler gauge is a precision hand tool made up of multiple thin steel blades, each with a specific thickness marked on it. You insert individual blades (or a combination of blades) into a gap to find the exact measurement by feel — the correct blade will slide in with a slight resistance. This 17-blade metric set covers 0.02mm to 1.00mm, making it ideal for engine valve clearance, spark plug gaps, and other precision measurement tasks.

Q: Can this feeler gauge be used for spark plug gap measurement?

A: Yes! This 17-blade feeler gauge is excellent for measuring and setting spark plug gaps. Simply select the blade matching your vehicle's required spark plug gap specification (found in your owner's manual), insert it between the centre and ground electrode, and adjust as needed for a perfect fit.

Q: Are the measurements metric or imperial?

A: This feeler gauge set uses the metric system, with blade thicknesses ranging from 0.02mm to 1.00mm. It is designed for metric gap measurement, making it compatible with most modern engines and European/Asian vehicles.

Q: How do I care for and store my feeler gauge blades?

A: After each use, wipe the blades clean with a dry cloth to remove any oil, grease, or debris. Fold all blades back into the protective housing before storing. Avoid bending or forcing the blades into tight gaps, as this can affect accuracy. Keeping them lightly oiled when stored for long periods will help prevent rust.