Starrett 52852 Feeler Gage 0.014 in Parallel Leaf Tempered Steel

Product Description

The STARRETT 52852 is a single-leaf feeler gage used to measure precise gaps and clearances in mechanical assemblies. The leaf is 0.014 inches thick, 0.5 inches wide, and 12 inches long, with a parallel profile that maintains consistent thickness along the full length. Constructed from tempered steel, it delivers the rigidity and wear resistance required for repeated use in tight-tolerance applications. HVAC technicians, plumbers, and mechanical tradespeople use feeler gages like this one when setting valve clearances, flue baffles, burner gaps, and pump component tolerances.

This gage is suited for residential and light commercial service work where precise gap measurement is required. Typical applications include checking clearances on gas valve components, blower assemblies, heat exchanger baffles, compressor valve plates, and pump impeller clearances. The 12-inch leaf length allows access to recessed or deep-set measurement points without requiring the technician to reposition the tool. The parallel leaf style ensures a flat, even contact surface, eliminating taper-induced measurement error.

Key Features

• 0.014-inch thickness for precise narrow-gap measurement
• Parallel leaf profile maintains uniform thickness end to end
• 12-inch leaf length for extended reach in deep assemblies
• 0.5-inch leaf width provides a stable contact surface
• Tempered steel construction resists wear and deformation under repeated use

Compatibility

Designed as a standard feeler gage leaf for general mechanical and trade service applications requiring 0.014-inch gap measurement.

Installation Notes

Feeler gages are used by licensed HVAC technicians, plumbers, and mechanical service professionals during inspection and adjustment procedures. Always de-energize and lock out equipment before inserting the gage leaf into any moving or electrically active assembly. Insert the leaf with even, light pressure — forcing the gage can distort the leaf or damage precision mating surfaces. Keep the leaf clean and free of oil or debris for accurate readings.