Precision Brand 77590 Flat Feeler Gage 0.0500 in 10-pack

Product Description

The PRECISION BRAND 77590 is a flat feeler gage leaf used to measure precise gaps and clearances in mechanical assemblies. Each leaf measures 0.0500 inches (1.27 mm) thick and 5 inches (127 mm) long with a width of 0.5 inches (12.7 mm). Constructed from stainless steel for corrosion resistance and dimensional stability, these leaves are suited for repetitive use in shop and field environments. This listing includes 10 individual leaves. Machinists, millwrights, HVAC technicians, and general maintenance professionals use feeler gages when setting valve clearances, checking spark plug gaps, aligning components, and verifying bearing fits.

Flat feeler gage leaves are used across a wide range of industries and applications wherever a known gap thickness must be confirmed or set. Common applications include engine valve adjustment, motor alignment, conveyor and machine tool maintenance, and HVAC equipment service such as checking compressor clearances or fan blade spacing. The uniform flat leaf profile allows access to tight spaces without deflection, making it reliable for consistent go/no-go measurements in both shop and field settings.

Key Features

• 0.0500-inch (1.27 mm) thickness for precise gap measurement
• Flat leaf style provides consistent contact across the full leaf surface
• 5-inch (127 mm) leaf length reaches into confined assembly areas
• 0.5-inch (12.7 mm) leaf width for stable, controlled insertion
• Stainless steel construction resists corrosion and maintains calibration over time
• Pack of 10 leaves for high-volume use or multiple technician kits

Compatibility

Designed as a standard flat feeler gage leaf suitable for general-purpose gap measurement tasks across mechanical, HVAC, automotive, and industrial maintenance applications.

Installation Notes

Feeler gage leaves should be inserted into gaps with steady, even hand pressure — never forced or bent, as this can alter the leaf thickness and compromise measurement accuracy. Clean the leaf surfaces before use to prevent debris from affecting readings. Store leaves flat and protected from physical damage to maintain dimensional accuracy over time.