Measuring Feeler Gauge INSIZE Spoinomierz 3–25 SPF-1.MS6 (4836-1) by INSIZE

INSIZE Spoinomierz 3–25 SPF-1.MS6 (4836-1) is a feeler and measuring gauge designed to check and set gaps and clearances within a 3–25 range. Produced by INSIZE, this tool provides a set of reference blades with precise thicknesses for inspection, maintenance and assembly operations. The feeler gauge is intended for repeated use in workshop and industrial environments where accurate, repeatable gap measurement and calibration are required.

Advantages

The INSIZE feeler gauge offers a reliable set of hardened blades that maintain their thickness across repeated measurements and resist deformation during normal use. Its compact construction allows for easy handling and storage, while clearly marked thickness values on each blade simplify identification and selection. The tool is suitable for routine inspection and adjustment tasks where consistent clearance control is necessary.

Suitable for

• Measuring and setting valve clearances in engines and machinery
• Checking gaps in bearings, couplings and mechanical assemblies
• Calibration and verification tasks in maintenance workshops
• Quality control inspections where small gap tolerances are specified

Key specifications

• Measurement range: 3–25 (thickness units as per manufacturer standard)
• Set composition: multiple precision blades covering the full measurement range
• Material: hardened metal blades for dimensional stability
• Markings: engraved or stamped thickness values on each blade for quick identification
• Form factor: compact, foldable or holder-mounted design for safe storage

How to use

Select the blade or combination of blades that approximates the target gap size, then insert the blade between the two surfaces to be measured. Slide the blade gently to feel resistance; a correct fit provides slight friction without forcing. For larger gaps, combine blades as needed to achieve the required total thickness. After use, clean blades of debris and store the set in its holder to protect blade edges and preserve accuracy.

Usage recommendations

Use the feeler gauge in ambient conditions that do not introduce excessive thermal expansion. Avoid bending or prying with blades to maintain calibration. Regularly inspect blades for wear or corrosion and clean after exposure to oil or contaminants; replace any blade that shows permanent deformation to ensure ongoing measurement accuracy.