Starrett 52854 Feeler Gage 0.016 in Parallel Leaf

Product Description

The STARRETT 52854 is a single parallel-leaf feeler gage used to measure and verify small gaps, clearances, and tolerances in mechanical assemblies. The leaf measures 0.016 inches thick, 0.5 inches wide, and 12 inches long, giving technicians a consistent reference blade for checking valve clearances, spark plug gaps, bearing fits, and similar precision measurements. Constructed from tempered steel, the leaf resists flex and wear under repeated use. This gage is a standard tool in HVAC, refrigeration, engine service, and industrial maintenance shops where tight clearance specs must be confirmed before reassembly.

This feeler gage leaf is suited for residential and commercial maintenance applications wherever gap verification is required. Common uses include checking compressor valve plate clearances, motor bearing end-play, and heat exchanger component fits. The 12-inch parallel leaf length allows access to deeper assemblies and provides a stable flat surface for accurate seating against mating components. HVAC technicians, millwrights, and general maintenance mechanics routinely use this size for equipment alignment and pre-startup inspection tasks.

Key Features

• Parallel leaf style provides uniform 0.016-inch thickness along the full 12-inch length
• Tempered steel construction resists deformation and maintains dimensional accuracy over time
• 0.5-inch leaf width offers sufficient surface contact for reliable gap readings
• 12-inch length allows reach into recessed clearance points in mechanical assemblies
• Lightweight at 0.04 pounds, easy to carry in a tool pouch or kit

Compatibility

Designed as a standard parallel-leaf feeler gage for use in any application requiring a 0.016-inch gap measurement reference, including HVAC, refrigeration, engine service, and general industrial maintenance.

Installation Notes

Feeler gages are hand tools used by HVAC technicians, mechanics, and maintenance professionals — no power tools or fastener torque is required for use. Before checking clearances on powered equipment, de-energize and lock out the unit per OSHA lockout/tagout procedures. Insert the leaf with light drag force; forcing the blade can spring the leaf or damage soft mating surfaces. Keep the blade clean and lightly oiled when stored to prevent corrosion.