Starrett 52849 Feeler Gage 0.011 in Parallel Leaf Steel

Product Description

The STARRETT 52849 is a single-leaf feeler gage used to measure and verify small gaps, clearances, and tolerances in mechanical assemblies and equipment. The leaf measures 0.011 inches thick, 0.5 inches wide, and 12 inches long with a parallel profile, meaning the thickness is consistent across the full length of the blade. Constructed from tempered steel, the blade resists flex and wear under repeated use. HVAC technicians, machinists, and mechanical service pros use feeler gages like this to check valve clearances, bearing fits, burner orifice gaps, and other tight-tolerance measurements during service and installation work.

This gage is suited for applications in residential and light commercial HVAC service, refrigeration equipment maintenance, general mechanical repair, and any trade task requiring precise gap verification. The 12-inch blade length provides reach into tight spaces such as heat exchanger assemblies, compressor housings, and equipment panels. The 0.5-inch blade width gives a stable surface contact against mating components. This individual leaf gage can be used standalone or alongside a set for covering a range of measurement increments.

Key Features

• 0.011-inch blade thickness for precise gap and clearance measurement
• Parallel leaf style maintains consistent thickness from tip to base
• 12-inch blade length provides extended reach into deep or confined assemblies
• 0.5-inch blade width ensures stable surface contact on mating parts
• Tempered steel construction resists deformation and wear under repeated use

Compatibility

Designed as a general-purpose feeler gage leaf for use in HVAC, refrigeration, and mechanical service applications requiring 0.011-inch gap measurement.

Installation Notes

Feeler gages are used by HVAC technicians, refrigeration mechanics, and general maintenance professionals. Always power down or shut off equipment before inserting the gage blade into any assembly. Insert the blade with light, consistent hand pressure — forcing the blade can spring or distort the tempered steel and compromise measurement accuracy. Follow equipment manufacturer specifications for required clearance values; this gage provides the measurement tool only.