Feeler Tape Gauge INSIZE 4621-04 — 0.04 mm Thickness, 5 m Length

INSIZE 4621-04 is a feeler tape gauge designed for accurate gap and clearance measurement. The tape has a thickness of 0.04 mm and a length of 5 m, offering a continuous thin strip that adapts to curved and flat surfaces. Intended for use in maintenance, inspection and precision assembly, this flexible measuring strip enables quick verification of joints, clearances in mechanical components and tight spaces where traditional feeler gauges or rigid instruments are impractical.

Advantages

The thin 0.04 mm profile provides high sensitivity for small-gap assessment while the 5 m length allows measurement across extended runs or multiple points without frequent repositioning. The flexible construction conforms to irregular surfaces and edges, improving contact and measurement reliability. The tape material is resistant to typical workshop handling and gives repeatable, easy-to-read results when used with standard measuring techniques.

Suitable for

• Checking clearances between mating parts in mechanical assemblies
• Measuring gaps in engines, gearboxes and valves
• Inspection and calibration tasks in maintenance shops
• Precision assembly where thin, flexible measurement strip is needed
• Applications requiring conformity to curved or uneven surfaces

Key specifications

• Tape thickness: 0.04 mm
• Tape length: 5 m
• Form factor: continuous flexible strip
• Primary use: gap and clearance measurement
• Suitable surfaces: flat and curved contact areas

How to use

Insert the feeler tape into the gap or along the clearance to be measured, ensuring the strip lies flat against both mating surfaces. Slide or pull the tape gently until it contacts both sides and note where resistance indicates the clearance. For longer measurements, run the tape along the area of interest and mark or record positions as needed. Use consistent pressure and positioning to improve repeatability and, when necessary, combine with calibrated reference tools to confirm results.

Usage recommendations

Store the tape in a clean, dry place to prevent contamination or corrosion. Clean the strip after use and avoid sharp bends that could create kinks. Use steady, even pressure when measuring and verify measurements with a secondary method if an exact tolerance is critical.