Feeler Gauge Feeler Gauge MW-SK 0.4-6/0.05 — range 0.4–6 mm, step 0.05 mm

Feeler Gauge MW-SK 0.4-6/0.05 is a compact set of precision metal feeler blades with a measurement range from 0.4 mm to 6.0 mm in 0.05 mm increments. The set is made for measuring narrow gaps, clearances and joint tolerances in mechanical assemblies, engines and maintenance tasks. Its orderly progression of blade thicknesses enables accurate selection of the correct clearance without requiring complex calibration or electronic instruments.

Advantages

The set provides a wide continuous range of thicknesses with fine 0.05 mm steps, allowing precise matching to required clearances. Blades are thin and rigid for reliable insertion into narrow gaps while retaining flatness for repeatable readings. The compact folding holder keeps blades organized, reduces risk of damage and allows quick access during inspection or adjustment work. No external power source or calibration tools are needed, making it practical for workshop and field use.

Suitable for

• Measuring valve clearances and tappet gaps in internal combustion engines
• Checking bearing play and shaft runout during assembly or maintenance
• Verifying sheet fitment, panel gaps and seam tolerances in metalworking and body repair
• Setting clearances in gearboxes, pumps and other mechanical components
• General workshop inspection tasks where precise gap measurement is required

Key specifications

• Measurement range: 0.4 mm to 6.0 mm
• Increment/step: 0.05 mm
• Blade material: hardened metal blades for dimensional stability and wear resistance
• Blade width and length: sized for insertion into narrow gaps and handling during manual measurement
• Holder type: compact folding holder to keep blades organized and protected

How to use

Select the blade or combination of blades closest to the target clearance and fold it out from the holder. Insert the blade gently into the gap to be measured; a proper fit should allow the blade to slide with slight resistance. If the blade is too loose or too tight, try the next thicker or thinner blade, or combine blades until the correct feel is obtained. Record the measured thickness and, if necessary, adjust components according to manufacturer specifications. After use, clean blades of oil and debris and fold them back into the holder for storage.

Usage recommendations

Use the feeler gauge on clean, dry surfaces and avoid bending blades beyond their elastic limit. Wipe blades with a light oil film to prevent corrosion when storing for extended periods. For engine work, follow manufacturer service intervals and torque specifications when making clearance adjustments.