Feeler Gauge Set GEKO G02739, 20 Blades, Range 0.05–1.00 mm

Feeler Gauge Set GEKO G02739 is a compact folding set of 20 precision blades with thicknesses ranging from 0.05 to 1.00 mm. The set is intended for accurate measurement of clearances, gaps and joint tolerances in engines, transmissions and general mechanical assemblies. Blades are arranged in a folding holder to keep them protected and organized for workshop and field use.

Advantages

The set provides a wide incremental range of thin blades for fine adjustment and inspection tasks with consistent, repeatable thickness steps. A folding holder protects the blades from damage and simplifies storage, while individual blades can be used singly or combined to measure intermediate gaps. The steel blades offer stable dimensional performance suitable for routine automotive maintenance and mechanical repair.

Suitable for

• Measuring valve clearances on petrol and diesel engines
• Checking shaft endplay and bearing clearances
• Setting spark plug and distributor gaps
• Verifying joint tolerances and assembly gaps in machinery
• General workshop inspection and maintenance tasks

Key specifications

• Number of blades: 20
• Thickness range: 0.05–1.00 mm
• Blade type: flat, tapered steel blades
• Design: folding holder for blade organization and protection
• Typical applications: clearance and gap measurement in engines and mechanical assemblies

How to use

Select the blade or combination of blades that match the expected gap and insert them between mating surfaces or across the measured clearance. Slide the blade gently to feel resistance; a correct clearance is indicated when the blade slides with light friction. Combine multiple blades if a single blade does not match the gap exactly. After use, fold the blades back into the holder to protect edges and maintain organization.

Usage recommendations

Use clean, dry blades and avoid bending or flexing the blades during measurement to preserve accuracy. Store the set in a dry environment to reduce corrosion risk. For critical measurements, verify blade thickness against a calibrated reference and replace blades that show wear or damage.