Feeler Gauge Set Jonnesway AI060020 — 20 Blades 0.05–1.00 mm

Feeler Gauge Set Jonnesway AI060020 — 20 Blades 0.05–1.00 mm is a compact measuring tool set designed for accurate gap measurement and adjustment. The set contains twenty individual steel blades with thicknesses from 0.05 mm to 1.00 mm, mounted on a pivot for secure storage and easy access. It is intended for tasks that require checking clearances, valve lash, shim fit, and general tolerance inspection in automotive and mechanical maintenance.

Advantages

The hardened steel blades provide consistent thickness and resistance to wear, while the pivot-mounted design keeps blades organized and reduces the risk of loss or damage. A clear progressive range from 0.05 mm to 1.00 mm allows selection of single blades or stacking multiple blades to achieve intermediate thicknesses. The compact folding form factor makes the set easy to carry and use in confined spaces.

Suitable for

• Measuring valve clearances and ignition points in engines
• Checking and setting mechanical clearances and tolerances
• Inspecting fit and gap sizes in assembly and maintenance work
• Use in automotive workshops, industrial maintenance, and hobbyist applications

When it may not be suitable

This feeler gauge set is intended for precision gap measurement within the supplied range of 0.05–1.00 mm; it is not suitable when measurements outside this range are required. For measurements needing traceable calibration certificates, specialty metrology equipment or calibrated feeler gauges with documented certification should be used instead.

Key specifications

• Blade count: 20 individual blades
• Blade thickness range: 0.05 mm to 1.00 mm
• Blade material: hardened steel
• Mounting: pivot-mounted folding holder
• Finish: corrosion-resistant treated surfaces
• Form factor: compact, pocketable folding set

How to use

Open the folding holder and select the blade with the required thickness. Insert the blade between the two surfaces whose gap you want to measure and slide gently; a proper fit is when the blade meets light resistance without force. For intermediate values, stack multiple blades and repeat the check until the desired clearance is matched. After use, wipe blades clean, fold them back into the holder, and store in a dry place to maintain condition.

What to consider before purchase

• Required measurement range — ensure 0.05–1.00 mm covers your application
• Need for certified calibration — this set is a practical workshop tool, not a certified measurement standard
• Material compatibility — hardened steel blades are suitable for metal surfaces but avoid corrosive environments or contact with dissimilar metals without protection
• Portability and storage — consider whether a compact folding set matches your workflow

Usage recommendations

Regularly clean and lightly oil the blades after use, avoid bending or prying with excessive force, and store the set in a dry place to extend service life. For repeated precision checks, periodically compare blade thicknesses against a reference gauge or calibrated standard.