Starrett 52862 Feeler Gage 0.024 in Parallel Leaf Steel

Product Description

The STARRETT 52862 is a single-leaf feeler gage used to measure and verify precise clearances in mechanical assemblies, HVAC equipment, and general maintenance applications. The leaf measures 0.024 inches thick, 0.5 inches wide, and 12 inches long, giving technicians a full-length parallel-profile blade for consistent contact across the measurement surface. Constructed from tempered steel, the blade resists wear and maintains dimensional accuracy through repeated use. HVAC technicians, millwrights, and equipment service professionals rely on feeler gages like this one to check valve clearances, bearing fits, and air gap settings during installation and preventive maintenance.

This feeler gage is suited for residential and commercial service work wherever precise gap measurement is required. Common applications include checking compressor valve clearances, motor bearing alignments, and equipment tolerances on HVAC, refrigeration, and mechanical systems. The 12-inch parallel leaf length allows access to recessed measurement points and provides a stable seating surface for accurate readings. It is typically used as a standalone blade or alongside other thickness leaves in a set.

Key Features

• 0.024-inch blade thickness for precise gap measurement at that specific clearance
• Parallel leaf style provides uniform thickness along the full 12-inch length
• Tempered steel construction resists deformation and maintains calibration through repeated use
• 0.5-inch blade width gives adequate surface contact for stable measurement readings
• 12-inch length allows reach into deep or recessed measurement areas

Compatibility

Designed as a standard parallel-leaf feeler gage blade suitable for general mechanical and HVAC service work requiring a 0.024-inch gap measurement reference.

Installation Notes

Feeler gages are hand tools used by HVAC technicians, millwrights, and general service professionals. Power down and de-energize any equipment before inserting the blade into a gap or clearance point. Insert the leaf with light, even pressure — forcing the blade can bend the leaf and compromise dimensional accuracy. Keep the blade clean and lightly oiled when stored to prevent corrosion and maintain measurement integrity.