Starrett 52845 Feeler Gage 0.007 in Parallel Leaf Steel

Product Description

The STARRETT 52845 is a single parallel-leaf feeler gage designed for precise gap measurement in mechanical and HVAC service applications. Manufactured from tempered steel, this gage measures 0.007 inches thick, 0.5 inches wide, and 12 inches long, providing the reach and rigidity needed for checking clearances in tight or confined spaces. The parallel leaf style ensures consistent thickness across the full length of the blade, which is critical for reliable readings. HVAC technicians, machinists, and plumbers use feeler gages like this one to verify burner gaps, valve clearances, and mechanical tolerances during installation or preventive maintenance.

This gage is suited for residential and light commercial service work where accurate clearance verification is required. Common applications include checking igniter and burner electrode gaps on gas furnaces, measuring bearing clearances, verifying valve stem clearances, and confirming fitment tolerances on mechanical assemblies. The 12-inch blade length allows access to recessed components without obstruction, and the 0.5-inch width gives a stable surface for feel-based measurement. The tempered steel construction resists deformation under repeated use.

Key Features

• Parallel leaf style maintains uniform 0.007-inch thickness along the full 12-inch blade length
• Tempered steel construction provides durability and resistance to bending or wear
• 0.5-inch blade width offers stable contact surface for consistent gap checks
• 12-inch length provides reach into recessed or confined service areas
• Single-leaf format for focused, application-specific clearance measurement

Compatibility

Designed as a standard parallel-leaf feeler gage suitable for use in general mechanical service, HVAC maintenance, and plumbing applications where 0.007-inch gap verification is required.

Installation Notes

Feeler gages are hand tools used by HVAC technicians, machinists, and plumbers during inspection and adjustment procedures. Always power down and lock out electrical equipment, and shut off gas supply before inserting a feeler gage near burners, igniters, or energized components. Do not force the blade into a gap narrower than the marked thickness, as this can deform the leaf and compromise accuracy. Clean the blade before and after use to prevent corrosion and maintain measurement integrity.