Precision Brand 19550 Feeler Gage 0.018 Inch 5 Inch 10 Pack

Product Description

The PRECISION BRAND 19550 is a flat-style feeler gage leaf used to measure precise gaps and clearances in mechanical assemblies. Each leaf measures 0.018 inches (0.457 mm) thick and 5 inches (127 mm) long with a width of 0.5 inches (12.7 mm). Constructed from high-carbon steel for consistent dimensional accuracy and durability under repeated use. This listing includes 10 leaves. Machinists, HVAC technicians, mechanics, and general maintenance trades use feeler gages to verify valve clearances, electrode gaps, bearing tolerances, and similar close-tolerance measurements.

Flat feeler gage leaves are a standard tool across residential and commercial HVAC service, engine and equipment maintenance, and industrial assembly work. The 0.018-inch thickness is a commonly referenced clearance value for spark plug gaps, valve train adjustments, and burner electrode settings. The 5-inch leaf length provides adequate reach for most bench and field applications without excessive flex. These leaves can be used individually or combined with other leaves to build up a target gap measurement.

Key Features

• 0.018 inch (0.457 mm) thickness for precise gap measurement
• 5 inch (127 mm) leaf length suits bench and field use
• 0.5 inch (12.7 mm) leaf width for standard clearance access
• Flat leaf style for straightforward parallel-gap applications
• High-carbon steel construction for dimensional stability and wear resistance
• Pack of 10 leaves for shop stock or multi-tech use

Compatibility

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

Installation Notes

Feeler gage leaves require no installation but should be handled and stored carefully to prevent bending or burring, which will affect measurement accuracy. Always de-energize or shut down equipment before inserting a feeler gage into live mechanical assemblies. Clean leaves before and after use to remove grease, debris, or corrosion that could add to the measured thickness. Replace any leaf that shows visible deformation, pitting, or wear.