Starrett 64209 Feeler Gage 0.0005 in Parallel Leaf Steel

Product Description

The STARRETT 64209 is a single parallel-leaf feeler gage blade used to measure precise gaps, clearances, and tolerances in mechanical assemblies. The blade measures 0.0005 inches thick, 0.5 inches wide, and 12 inches long, making it well suited for checking tight clearances where consistent, repeatable measurement is required. Constructed from tempered steel, the leaf maintains dimensional stability and resists wear during routine use. HVAC technicians, plumbers, and mechanical contractors use feeler gage blades like this one when setting valve clearances, checking burner orifice gaps, or verifying component fitment during installation and service work.

This blade is appropriate for use in residential and commercial service applications wherever precise gap measurement is needed. The parallel leaf style provides uniform thickness along the full 12-inch length, ensuring accurate readings at any point along the blade. It is a replacement or supplemental blade intended for use with compatible feeler gage sets or as a standalone measurement tool carried in a field service kit.

Key Features

• Parallel leaf style provides consistent 0.0005-inch thickness along the entire 12-inch length
• Tempered steel construction resists deformation and maintains calibration integrity under repeated use
• 0.5-inch blade width offers adequate surface contact for stable gap readings
• 12-inch length suits a wide range of reach requirements in confined service areas
• Single-blade format works as a replacement leaf or standalone field measurement tool

Compatibility

Designed as a replacement or supplemental parallel feeler gage leaf compatible with standard feeler gage sets that accept individual blades of matching thickness and width specifications.

Installation Notes

Feeler gage blades require no installation tools but should be handled with clean, dry hands or gloves to prevent corrosion on the tempered steel surface. When measuring gap clearances on equipment, ensure the system is powered down and all moving components are fully at rest before inserting the blade. Apply only light, consistent pressure when sliding the blade into a gap to avoid bending or scoring the leaf. Store blades flat or in a protective case to prevent warping.