Starrett 52882 Feeler Gage Parallel Leaf Tempered Steel

Product Description

The STARRETT 52882 is a single-leaf feeler gage used to measure clearances, gaps, and tolerances in mechanical assemblies. The parallel leaf is 0.5 mm thick, 12.7 mm wide, and 300 mm long, providing consistent cross-section measurements across the full blade length. Constructed from tempered steel, the blade resists wear and maintains dimensional stability under repeated use. HVAC technicians, machinists, plumbers, and mechanical contractors rely on feeler gages like this one to verify valve clearances, burner orifice gaps, and component alignment during installation and service.

This feeler gage is suited for residential and commercial applications where precise gap measurement is required. Common uses include checking heat exchanger clearances, motor bearing tolerances, compressor valve gaps, and burner head alignment in HVAC and refrigeration systems. The 300 mm blade length provides reach into tight assemblies, and the parallel leaf profile ensures uniform contact across the measurement surface.

Key Features

• Parallel leaf profile delivers consistent 0.5 mm thickness from end to end
• Tempered steel construction for durability and long service life
• 300 mm blade length allows reach into deep or confined assemblies
• 12.7 mm blade width provides stable surface contact during measurement
• Single-leaf format for direct, unambiguous gap verification

Compatibility

Designed as a standard feeler gage blade for general mechanical and trade use wherever a 0.5 mm gap measurement is required.

Installation Notes

Feeler gages are a hand measurement tool and require no installation. Power down or de-energize any equipment before inserting the blade into a gap near moving parts or electrical components. Clean the blade and mating surfaces before measuring to avoid false readings. Handle the tempered steel blade carefully to prevent bending, which would compromise accuracy.